periodic table Crossword Puzzles

Chapter 16: Properties of Atoms & The Periodic Table 2021-04-05

Chapter 16: Properties of Atoms & The Periodic Table crossword puzzle
Across
  1. Uses the chemical symbol of an element surrounded by dots to represent the number of electrons in the outermost energy level.
  2. The small, positively charged center of the atom.
  3. Particles in the nucleus with an electric charge of 1+.
  4. The horizontal rows of elements in the periodic table.
  5. The smallest particle of an element that retains the element’s properties.
  6. The number of protons in an atom’s nucleus is equal to this.
  7. Particles with an electrical charge of 1-. They occupy the space surrounding the nucleus of an atom.
  8. Elements are arranged by increasing atomic number and by periodic changes in physical and chemical properties.
  9. The vertical columns in the periodic table.
Down
  1. The area around the nucleus of an atom where electrons are most likely to be found.
  2. Small particles that make up protons and neutrons.
  3. The weighted average mass of all naturally occurring isotopes of an element, measured in atomic mass units (amu), according to their natural abundances.
  4. The sum of the number of protons and the number of neutrons in the nucleus of an atom.
  5. Atoms of the same element that have different numbers of neutrons.
  6. Electrically charged neutral particles in the nucleus, they do not have a charge.

15 Clues: The vertical columns in the periodic table. • The small, positively charged center of the atom. • Small particles that make up protons and neutrons. • The horizontal rows of elements in the periodic table. • Particles in the nucleus with an electric charge of 1+. • The number of protons in an atom’s nucleus is equal to this. • ...

Hon Chem Fall Vocab Part 1 2024-11-21

Hon Chem Fall Vocab Part 1 crossword puzzle
Across
  1. Provides the ability to express really small and really large numbers using the power of 10
  2. Describes a substances potential for a chemical reaction to occur
  3. Their properties are dependent on the environmental conditions, and they are found between the metals and nonmetals
  4. Determined using isotopes and their abundances
  5. The periodic repetition of elements physical and chemical properties
  6. Energy required to remove an electron from an atoms PEL; the greater the value the more difficult it is to remove an electron (why anions have negative charges) and is affected by atom size and number of protons
  7. Number of protons, provides identity of element
  8. Regarding the ability to repeat an outcome (data point)
  9. Organized the periodic table by increasing atomic number, what the present periodic table is organized by
  10. Variable that is observed or measured during the experiment and is graphed on the y-axis
  11. Mixture is uniform in composition, particles are so small that they will not fall out of suspension, known as solutions
  12. Variable whose value determines the value of another variable, determined prior to the experiment and is graphed on the x-axis
  13. Size of an atom; increases with the addition of another PEL and decreases due to the increase in the attractive force electrons feel towards the nucleus due to a greater number of protons
  14. Shows mathematical relationships and provides a picture of the data
  15. Element or compound, can not be separated by physical means
  16. Particles are large and will settle in a short time period
  17. Mass is neither created nor destroyed, it only changes form
  18. Amount of stuff in a given space or the ratio of mass to volume
  19. Ordered arrangement of particles in a solid crystalline structure
  20. Quality or condition that can be observed or measured without changing a substances composition
  21. Organized the periodic table by increasing atomic mass
  22. 2 or more substances mixed in unfixed proportions, can be separated by physical properties
  23. Particles have NO order and interaction with one another (high energy and no attraction)
  24. Total mass of an atom and is equal to the protons plus the neutrons
  25. Mixture is not uniform in composition, particles will vary in size and therefore will fall out of suspension
  26. Dependent on the amount of matter in a sample, example would be mass
  27. Composition of the matter changes
  28. Manipulation of a substance while maintaining composition
  29. Ability of an atom to attract electrons when in a compound; smaller the atom and least number of protons will give a greater draw to other electrons
Down
  1. Logical, systematic approach to the solution of a problem
  2. Dependent on the type of matter in the sample, example would be melting point
  3. Mathematical process that uses ratios or equalities to move from one unit system to another
  4. Number in standard notation will be less than one
  5. Column on the periodic table, also known as Family
  6. Number in standard notation will be greater than one
  7. Prediction inside the data set
  8. Used to validate the accuracy of an experiment
  9. Matter is composed on tiny particles in motion
  10. Particles are less close together with less order, demonstrate “flow” (moderate kinetic energy and moderate attraction)
  11. Particles are small enough that it takes long time periods for settling to occur
  12. Separates a solid from a liquid
  13. 2 or more elements chemically bonded together in fixed proportions, can be broken down into elemental components
  14. Anything that has mass and takes up space
  15. Separates components from a solution
  16. 80% of the elements are within this class; they are good conductors, and most are solids at room temperature
  17. Regarding the ability to meet a desired goal (data point)
  18. Prediction outside of the data set
  19. Determined by the tool being used and must be honored throughout calculations
  20. Shows relationships between 3 phases of a substance and provides specifics regarding temperature and pressure conditions for each phase
  21. Most are found in the upper right corner of the periodic table; they are bad conductors, and most are gases at room temperature
  22. A row on the periodic table
  23. Particles are packed tightly together in ordered arrangement (low kinetic energy and high attraction)
  24. Overall trend line used in a scatter plot graph
  25. Describes a gaseous state of a substance that is not a gas at room temperature
  26. The result of gas particle collisions with an object
  27. Simplest form of matter that maintains physical and chemical properties

56 Clues: A row on the periodic table • Prediction inside the data set • Separates a solid from a liquid • Composition of the matter changes • Prediction outside of the data set • Separates components from a solution • Anything that has mass and takes up space • Determined using isotopes and their abundances • Used to validate the accuracy of an experiment • ...

Nuclear Energy 2023-11-01

Nuclear Energy crossword puzzle
Across
  1. Can go through skin and aluminium but is stopped by lead
  2. Calculated by adding neutrons and protons
  3. When an atom has a different mass than whats on the periodic table
  4. Instability in a atom which makes it this
  5. 2 atom combine and release energy
  6. When something happens and causes another set of reactions to happen
  7. This determines its place on the periodic table, Calculated by the number of protons
  8. The Time point when a sample has gotten to half of its original amount
Down
  1. An atom splits and releases energy
  2. Is released during beta decay, Is one electron
  3. Releases during Alpha decay, Also known as a helium nucleus
  4. Determines what element it is
  5. the center of a atom and contains most mass in a atom
  6. Neutrally charged subatomic particle, Weighs 1 amu

14 Clues: Determines what element it is • 2 atom combine and release energy • An atom splits and releases energy • Calculated by adding neutrons and protons • Instability in a atom which makes it this • Is released during beta decay, Is one electron • Neutrally charged subatomic particle, Weighs 1 amu • the center of a atom and contains most mass in a atom • ...

Chemistry Terms 2025-03-28

Chemistry Terms crossword puzzle
Across
  1. Energy levels where electrons are found
  2. A negatively charged particle orbiting the nucleus
  3. A neutral subatomic particle found in the nucleus
  4. How easily an element undergoes a chemical reaction
Down
  1. A pure substance made of only one type of atom
  2. A horizontal row in the periodic table
  3. A positively charged subatomic particle
  4. A vertical column in the periodic table

8 Clues: A horizontal row in the periodic table • Energy levels where electrons are found • A positively charged subatomic particle • A vertical column in the periodic table • A pure substance made of only one type of atom • A neutral subatomic particle found in the nucleus • A negatively charged particle orbiting the nucleus • ...

C3.1 Revision Crossword 2015-11-22

C3.1 Revision Crossword crossword puzzle
Across
  1. What type of bond is formed where two atoms share electrons
  2. How is the modern periodic table arranged
  3. A name for group 7 of the periodic table
Down
  1. A thing Transition metals Conduct
  2. What does the number at the top of the element represent
  3. Group 7 boiling and melting points
  4. what does reactivity do as you go down group 1
  5. Scientist who used music theory to order elements
  6. What is a charged particle

9 Clues: What is a charged particle • A thing Transition metals Conduct • Group 7 boiling and melting points • A name for group 7 of the periodic table • How is the modern periodic table arranged • what does reactivity do as you go down group 1 • Scientist who used music theory to order elements • What does the number at the top of the element represent • ...

Chapter 9 crossword-Brooke Sintobin 2020-09-20

Chapter 9 crossword-Brooke Sintobin crossword puzzle
Across
  1. An atom that carries an electrical charge.
  2. Any of the possible energies an electron may have in an atom.
  3. Located in the nucleus of the atom; no charge.
  4. Move around the outside of the nucleus; negative charge.
  5. Two atom with a different number of neutrons.
Down
  1. Highly reactive elements on the periodic table of elements.
  2. Designer of the periodic table of elements.
  3. An electron in the outermost energy level of an atom.
  4. Located in the nucleus of the atom; positive charge.
  5. Used for things that are too small or too large to be observed.

10 Clues: An atom that carries an electrical charge. • Designer of the periodic table of elements. • Two atom with a different number of neutrons. • Located in the nucleus of the atom; no charge. • Located in the nucleus of the atom; positive charge. • An electron in the outermost energy level of an atom. • Move around the outside of the nucleus; negative charge. • ...

Konner Sanford Crossword 2021-10-13

Konner Sanford Crossword crossword puzzle
Across
  1. An atom that carries an electrical charge.
  2. what type of charge does an electron have?
  3. The mass per unit volume.
  4. The force exerted per unit area of a force.
  5. How many valence electrons does Fluorine have?
Down
  1. A substances reaction with another to form a new substance with different properties.
  2. Who made the periodic table?
  3. what is Number 9 on the periodic table?
  4. What type of charge does a proton have?
  5. property A characteristic of a substance that can be observed without changing the composition of a substance.

10 Clues: The mass per unit volume. • Who made the periodic table? • what is Number 9 on the periodic table? • What type of charge does a proton have? • An atom that carries an electrical charge. • what type of charge does an electron have? • The force exerted per unit area of a force. • How many valence electrons does Fluorine have? • ...

Chemistry Crossword 2017-12-08

Chemistry Crossword crossword puzzle
Across
  1. This is used to compare the acidity of solutions
  2. A pure substance, formed with 2 or more non-metals
  3. A pure substance that cannot be broken down
  4. A chemical, present during the beginning of a chemical reaction that is used up doing the reaction
  5. An aqueous solution that neutralizes a base
Down
  1. An aqueous solution that turns red litmus blue
  2. Elements found in the first column of the periodic table
  3. A row of elements in the periodic table
  4. A negatively charged ion
  5. Has a pH of 7, not acidic or basic

10 Clues: A negatively charged ion • Has a pH of 7, not acidic or basic • A row of elements in the periodic table • A pure substance that cannot be broken down • An aqueous solution that neutralizes a base • An aqueous solution that turns red litmus blue • This is used to compare the acidity of solutions • A pure substance, formed with 2 or more non-metals • ...

pun-pun 2015-06-15

pun-pun crossword puzzle
Across
  1. is a soft, malleable and heavy post-transition metal.
  2. is soft and malleable and have orange color
  3. monatomic gas that heads the noble gas group in the periodic table
  4. It is a soft, silvery, ductile metal which easily oxidizes in air
  5. it is a soft, silver-white, highly reactive metal
  6. It is a metal in the first transition series
Down
  1. A soft, white, lustrous transition metal
  2. is a soft gray alkaline earth metal
  3. a non-metallic solid
  4. It is a main group metal in group 14 of the periodic table

10 Clues: a non-metallic solid • is a soft gray alkaline earth metal • A soft, white, lustrous transition metal • is soft and malleable and have orange color • It is a metal in the first transition series • it is a soft, silver-white, highly reactive metal • is a soft, malleable and heavy post-transition metal. • It is a main group metal in group 14 of the periodic table • ...

science vocabulary 2024-09-13

science vocabulary crossword puzzle
Across
  1. the basic building block of life
  2. the formula that tells you what elements are in a compound
  3. cannot be broken down into more basic substances, make up the periodic table
  4. made of elements; mixture
  5. where all of the elements are arranged
  6. the abbreviation for each element
Down
  1. a change that changes the chemical makeup of a substance
  2. the number that tells you where on the periodic table each element is
  3. a change that does NOT change the chemical makeup of a
  4. everything that takes up space consists of _______

10 Clues: made of elements; mixture • the basic building block of life • the abbreviation for each element • where all of the elements are arranged • everything that takes up space consists of _______ • a change that does NOT change the chemical makeup of a • a change that changes the chemical makeup of a substance • the formula that tells you what elements are in a compound • ...

Crossword 2021-01-19

Crossword crossword puzzle
Across
  1. these elements react to form positive ions
  2. scientist who devised the modern periodic table
  3. elements with similar properties are arranged in these
  4. the discovery of these made it possible to explain why the order of elements based on atomic weights was not always correct
  5. these are non-metals with seven electrons in their outer shell
  6. a more reactive halogen can do this to a less reactive halogen from an aqueous solution of its salt
Down
  1. these were left by Mendeleev for undiscovered elements
  2. these occur down groups and depend on distinctive properties of elements
  3. the arrangement of these in its atoms determines an elements position in the table
  4. these metals are reactive as they have a single electron in their outer shell
  5. these gases are unreactive as they have a stable arrangement of electrons
  6. this number determines the order of elements in the periodic table

12 Clues: these elements react to form positive ions • scientist who devised the modern periodic table • these were left by Mendeleev for undiscovered elements • elements with similar properties are arranged in these • these are non-metals with seven electrons in their outer shell • this number determines the order of elements in the periodic table • ...

The Periodic Table of Elements 2013-11-21

The Periodic Table of Elements crossword puzzle
Across
  1. / A table where the elements are sorted into groups such as, metals, nonmetals, metaloids and gasses
  2. / Every element has an international one, two or three letter code. This code is called an element's-
Down
  1. / The mass of an element's atom is called it's-
  2. / The vertical items of the periodic table
  3. / The horizontal lines of the periodic table
  4. / The periodic table contains information about pure substances called-

6 Clues: / The vertical items of the periodic table • / The horizontal lines of the periodic table • / The mass of an element's atom is called it's- • / The periodic table contains information about pure substances called- • / A table where the elements are sorted into groups such as, metals, nonmetals, metaloids and gasses • ...

Periodic Table 2023-11-30

Periodic Table crossword puzzle
Across
  1. DmitriMendeleev put the periodic table in order by what?
  2. Created the first periodic table before the other chemist?
  3. This element is dull and has a low melting point?
  4. These types of elements have semi-conductors
  5. These types of elements are conductors?
Down
  1. Henry Moseley put the periodic table in order by what?
  2. This element can be shiny or dull?
  3. These types of elements don't have conductors?
  4. This element is shiny,malleable, and has a high melting point?

9 Clues: This element can be shiny or dull? • These types of elements are conductors? • These types of elements have semi-conductors • These types of elements don't have conductors? • This element is dull and has a low melting point? • Henry Moseley put the periodic table in order by what? • DmitriMendeleev put the periodic table in order by what? • ...

Science quiz of the periodic table 2024-01-21

Science quiz of the periodic table crossword puzzle
Across
  1. a mixture of two or more metals
  2. the center of an atom
  3. formed gaing one electron
  4. the number of protons in a nucleus
  5. elements that never react with other elements
  6. a uncharged particle
  7. a vertical column on the periotic table
  8. a model showing the possible outcomes of a electron
  9. a positively charged particle
Down
  1. a negatively charged particle
  2. very reactive non-metals
  3. a horizontal column on the periodic table
  4. gains or loses atoms
  5. an element that is a good conductor of electricity
  6. cannot be shaped
  7. have a different number of neutrons
  8. formed losing one electron

17 Clues: cannot be shaped • gains or loses atoms • a uncharged particle • the center of an atom • very reactive non-metals • formed gaing one electron • formed losing one electron • a negatively charged particle • a positively charged particle • a mixture of two or more metals • the number of protons in a nucleus • have a different number of neutrons • a vertical column on the periotic table • ...

Physical Science Crossword 2023-10-20

Physical Science Crossword crossword puzzle
Across
  1. energy of motion
  2. combination of elements, like H2O
  3. energy that is available and ready to go
  4. atom or molecule with electric charge
  5. negative particle in an atom
  6. shiny, malleable substance that conducts electricity
  7. neutral particle in an atom
  8. gases like neon, helium, and argon
  9. things like oxygen, on the periodic table
Down
  1. table containing all the elements
  2. elements joining together
  3. electrons in outer shell of atom
  4. energy that comes from the planet's heat
  5. heat energy
  6. positive particle in an atom
  7. everything is made of these, very tiny
  8. energy that comes from the sun

17 Clues: heat energy • energy of motion • elements joining together • neutral particle in an atom • positive particle in an atom • negative particle in an atom • energy that comes from the sun • electrons in outer shell of atom • table containing all the elements • combination of elements, like H2O • gases like neon, helium, and argon • atom or molecule with electric charge • ...

The Periodic Table 2025-11-17

The Periodic Table crossword puzzle
Across
  1. Which element has a zero valency?
  2. Mendeleev Who invented the periodic table?
  3. What do horizontal rows represent?
  4. Which element has the lowest electronegativity?
Down
  1. row What is a period on the periodic table?
  2. 17 What are the halogens?
  3. What do vertical columns represent?

7 Clues: 17 What are the halogens? • Which element has a zero valency? • What do horizontal rows represent? • What do vertical columns represent? • row What is a period on the periodic table? • Mendeleev Who invented the periodic table? • Which element has the lowest electronegativity?

Crossword Puzzle Test 1 2021-11-03

Crossword Puzzle Test 1 crossword puzzle
Across
  1. Energy in = energy out
  2. ratio of temperature and mass
  3. hot to cold
  4. mass and volume
  5. can do work
  6. on periodic table
Down
  1. space
  2. one type to another
  3. a sodium and chlorine atom joined
  4. particle speed
  5. work being done
  6. stopped
  7. a new battery
  8. push or pull
  9. two hydrogen atoms joined
  10. moves balance

16 Clues: space • stopped • hot to cold • can do work • push or pull • a new battery • moves balance • particle speed • work being done • mass and volume • on periodic table • one type to another • Energy in = energy out • two hydrogen atoms joined • ratio of temperature and mass • a sodium and chlorine atom joined

List #13 2023-11-30

List #13 crossword puzzle
Across
  1. building for sick people
  2. a soft like voice
  3. at the top
  4. old family members
  5. best friend
  6. to leave beside
  7. color changes
  8. formal argument
  9. like alike
  10. more then one
  11. on the periodic table
  12. inside of anything
Down
  1. helps with donations
  2. open sweeter
  3. outskirts of a city
  4. opposite of horizontal
  5. has four sides
  6. good enough
  7. city area
  8. fair and just
  9. an estimation

21 Clues: city area • at the top • like alike • good enough • best friend • open sweeter • color changes • fair and just • an estimation • more then one • has four sides • to leave beside • formal argument • a soft like voice • old family members • inside of anything • outskirts of a city • helps with donations • on the periodic table • opposite of horizontal • building for sick people

List #13 2023-11-30

List #13 crossword puzzle
Across
  1. building for sick people
  2. a soft like voice
  3. at the top
  4. old family members
  5. best friend
  6. to leave beside
  7. color changes
  8. formal argument
  9. like alike
  10. more then one
  11. on the periodic table
  12. inside of anything
Down
  1. helps with donations
  2. open sweeter
  3. outskirts of a city
  4. opposite of horizontal
  5. has four sides
  6. good enough
  7. city area
  8. fair and just
  9. an estimation

21 Clues: city area • at the top • like alike • good enough • best friend • open sweeter • color changes • fair and just • an estimation • more then one • has four sides • to leave beside • formal argument • a soft like voice • old family members • inside of anything • outskirts of a city • helps with donations • on the periodic table • opposite of horizontal • building for sick people

List #13 2023-11-30

List #13 crossword puzzle
Across
  1. building for sick people
  2. a soft like voice
  3. at the top
  4. old family members
  5. best friend
  6. to leave beside
  7. color changes
  8. formal argument
  9. like alike
  10. more then one
  11. on the periodic table
  12. inside of anything
Down
  1. helps with donations
  2. open sweeter
  3. outskirts of a city
  4. opposite of horizontal
  5. has four sides
  6. good enough
  7. city area
  8. fair and just
  9. an estimation

21 Clues: city area • at the top • like alike • good enough • best friend • open sweeter • color changes • fair and just • an estimation • more then one • has four sides • to leave beside • formal argument • a soft like voice • old family members • inside of anything • outskirts of a city • helps with donations • on the periodic table • opposite of horizontal • building for sick people

Chapter 10 Vocabulary 2016-01-10

Chapter 10 Vocabulary crossword puzzle
Across
  1. colored lines generated when light emitted by a gas is shown through a spectroscope (2W)
  2. the distance between consecutive peaks in a wave
  3. a particle representing a quantum of light or other electromagnetic radiation
  4. a measurement of the number of waves that pass a particular point per second
  5. a measurement of how fast a wave travels in space
  6. a cloudlike region around the nucleus where electrons are located
  7. the orbital arrangement of electrons in an atom (2W)
  8. horizontal groups of elements in the periodic table
  9. the property of an electron that describes its appearance of spinning on an axis like a globe
  10. one way energy travels through space (3W)
  11. a way of showing the arrangement of electrons in an atom (2W)
  12. noble gas configuration (2W)
  13. the number of electrons a p orbital can hold
Down
  1. contains electrons in the orbitals (3W)
  2. small measures of energy
  3. electrons fill the lowest energy level first (2W)
  4. an atomic orbital can hold a maximum of 2 electrons, which most have opposite (3W)
  5. an A group element (2W)
  6. principle that states that energy levels in atoms are written; n=1, n=2... (3W)
  7. the number that indicates the shape of the orbital (4W)
  8. two possible values for spin, +1/2 or -1/2 (3W)
  9. the publisher of the periodic table
  10. within a sublevel, place one electron per orbital before pairing them (2W)
  11. a new branch of physics (2W)
  12. the electrons in the outermost energy level of an atom (2W)
  13. the B groups and group VIII (2W)
  14. the lowest available level within an atom (2W)
  15. electrons on the outermost electron shell (2W)
  16. the last name of a French physicist who suggested that all objects have wave properties
  17. also called families, vertical groups of elements in the periodic table

30 Clues: an A group element (2W) • small measures of energy • a new branch of physics (2W) • noble gas configuration (2W) • the B groups and group VIII (2W) • the publisher of the periodic table • contains electrons in the orbitals (3W) • one way energy travels through space (3W) • the number of electrons a p orbital can hold • the lowest available level within an atom (2W) • ...

Chemistry Crossword 2015-12-01

Chemistry Crossword crossword puzzle
Across
  1. group of atoms joined by covalent bonds
  2. catalyst involved in chemical reactions in living things.
  3. group 17 elements in the periodic table; the most reactive non-metals.
  4. homogeneous mixture of two or more substances that look like one substance.
  5. cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out.
  6. combination of pure substances, the components do not combine chemically and are not always in the same ratio.
  7. number of protons in the nucleus of one atom of an element
  8. positively charged center of atom; contains protons and neutrons.
  9. an experiment in which one or more products of a chemical reaction can escape.
  10. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy.
  11. vertical column of elements in the periodic table; elements in the periodic table, elements in a family all have similar chemical properties.
  12. positively charged particle in the nucleus of an atom
Down
  1. Chemical combination of two or more elements in a specific ratio.
  2. invisible negatively charged particle that orbits the nucleus of an atom
  3. substance that reacts with another substance(s) in a chemical reaction to create new substances with different properties.
  4. change of state from solid to gas or from gas to solid.
  5. cloudy mixture in which tiny particles of one substance are held within another, and the particles cannot be separated out.
  6. characteristics that describe a particular substance
  7. change of state from gas to a solid
  8. change of state from a gas to liquid.
  9. new substance produced in a chemical reaction between reactants
  10. atom that has become electrically charged because it has lost or gained electrons.
  11. Pure substance that cannot be broken down into other substances.
  12. element that has both metallic and nonmetallic properties.
  13. substance that helps a chemical reaction to proceed more quickly.

25 Clues: change of state from gas to a solid • change of state from a gas to liquid. • group of atoms joined by covalent bonds • characteristics that describe a particular substance • positively charged particle in the nucleus of an atom • change of state from solid to gas or from gas to solid. • catalyst involved in chemical reactions in living things. • ...

Chemistry Terms 2017-02-12

Chemistry Terms crossword puzzle
Across
  1. A combination of atoms that link together
  2. An element that isn’t a metal. Can break easily and can’t conduct electricity or heat
  3. Cause (a substance) to be deposited in solid form from a solution
  4. A mark or character used as a conventional representation of a element
  5. Any of the gaseous elements helium, neon, argon, krypton, xenon, and radon of the periodic table
  6. The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table
  7. Atomic particles found in the nucleus of an atom and carry a positive charge
  8. A form of matter that may not be further broken down using any chemical means
  9. Absorption of heat
  10. A thing that is composed of two or more separate elements; a mixture
  11. A substance that takes part in and undergoes change during a reaction.
  12. In each period (horizontal row), the atomic numbers increase from left to right
  13. Russian chemist and inventor
  14. Center of an atom
Down
  1. A substance consisting of atoms which all have the same number of protons
  2. Release of heat
  3. Regions of space outside the nucleus of an atom where an electron may exist
  4. Mass in an object is neither created nor destroyed by chemical reactions or physical transformations
  5. An element that can conduct electricity and heat. Is malleable and ductile
  6. A group is a column of elements in the periodic table of the chemical elements
  7. The mass of an atom of a chemical element
  8. Electrons in the outermost energy level of an atom
  9. Nobel Prize-winning research on the structure of atoms
  10. Substance formed from chemical reactions
  11. Atomic particles found in the nucleus of an atom and carry no electrical charge
  12. Atomic particles that move around the nucleus of an atom and carry a negative charge
  13. An element that has properties of metals and nonmetals

27 Clues: Release of heat • Center of an atom • Absorption of heat • Russian chemist and inventor • Substance formed from chemical reactions • A combination of atoms that link together • The mass of an atom of a chemical element • Electrons in the outermost energy level of an atom • Nobel Prize-winning research on the structure of atoms • ...

Unit B - Matter and Chemical Change. 2017-11-10

Unit B - Matter and Chemical Change. crossword puzzle
Across
  1. catalyst involved in all living things
  2. change of state from gas to a solid.
  3. a material that electric charge can move through easily
  4. the smallest part of an element that is representative of that element a neutral particle made up of a nucleus containing protons and neutrons
  5. reaction chemical reaction that absorbs energy
  6. substance that helps a chemical reaction to proceed quickly
  7. change that result when two or more substance react to create a different substance or substance the new substances have completely different properties from the original ones.
  8. slow chemical reaction that occurs when oxygen hits metal
  9. description of how a substance interacts with other substance such as acids chemical properties are observable only when a chemical change occurs to form new substances
  10. a vertical column of elements in the periodic table
  11. number of protons in the nucleus of one atom of an element
  12. a reaction that takes place between two elements
  13. mass of atom of an element calculated from the total number of protons neutrons and electrons.
  14. Group 1 elements in the periodic table not including hydrogen the most reactive non metals
Down
  1. reaction chemical reactions that gives off energy
  2. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and gives off energy
  3. ability of a substance to conduct electricity or heat
  4. amount of mass in a given volume of a substance
  5. change of state form a gas to a liquid
  6. group two elements in the periodic table , not including hydrogen, the most reactive of the metals
  7. of mass principle that matter is not created or destroyed. It can not be destroyed or created, the mass is always equal.
  8. chemical combination of two or more elements in specific ration
  9. combination of symbols that represent a compound” the formula identifies the elements into the compound the formula identifies the element s in the compound and the amount of each element

23 Clues: change of state from gas to a solid. • catalyst involved in all living things • change of state form a gas to a liquid • reaction chemical reaction that absorbs energy • amount of mass in a given volume of a substance • a reaction that takes place between two elements • reaction chemical reactions that gives off energy • ...

Science Crossword 2017-11-07

Science Crossword crossword puzzle
Across
  1. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  2. chemical reaction that releases energy
  3. catalyst involved in chemical reactions in living things
  4. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  5. slow chemical change that occurs when oxygen in the air reacts with a metal
  6. change that results when two or more substances react to create a different substance or substances
  7. a reaction that takes place when two or more substances react to form new substances
  8. atom that has become electrically charged because it has lost or gained electrons
  9. invisible negatively charged particle that orbits the nucleus of an atom
  10. chemical combination of two or more elements in a specific ratio
  11. pure substance that cannot be broken down into other substances
  12. an experiment in which all reactants and all products of a chemical reaction are accounted for
  13. the most reactive non-metals
  14. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  15. mass of one atom of an element calculated from the total number of protons, neutrons, and electrons of that atom
  16. vertical column of elements in the periodic table that have similar chemical properties
Down
  1. combination of symbols that represent a compound
  2. orbit of electrons around the nucleus of an atom
  3. chemical reaction that absorbs energy
  4. the mass of the products always equals the mass of the reactants
  5. energy stored in chemicals and released when chemicals react
  6. substance that helps a chemical reaction to proceed more quickly
  7. number of protons in the nucleus of one atom of an element
  8. compound that dissolves in water to form a solution with a pH lower than 7
  9. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals

25 Clues: the most reactive non-metals • chemical reaction that absorbs energy • chemical reaction that releases energy • combination of symbols that represent a compound • orbit of electrons around the nucleus of an atom • catalyst involved in chemical reactions in living things • number of protons in the nucleus of one atom of an element • ...

gvh 2018-01-17

gvh crossword puzzle
Across
  1. The most abundant metal in the universe
  2. It can be used to identify an element's atomic no.
  3. Regions where electrons can be "possibly" found
  4. Lightest of all metals
  5. Also known as vapor galvanizing or dry galvanizing
  6. The most stable/inert group in the periodic table
  7. Positively charged ion
  8. It is how easy for an atom to gain an electron
  9. Aside from Hydrogen, It is the only non-metal placed in the reactivity series
  10. An atom becomes an/a _ when electrons are lost of gained
  11. Element with an atomic no. of 118
  12. First person to arrange the elements according to atomic no., "Developer" of the Periodic Table (Last name)
Down
  1. Negatively charged ion
  2. It is the Element's symbol Mass number (ex: Fe-56)
  3. Element with an atomic no. of 117
  4. Eliminating (or Lowering) the amount of water or moisture in a certain area to prevent metal corrosion
  5. An element with a symbol of Rh
  6. The 'exponents' in an element's electronic configuration stands for its _
  7. Horizontal row in the Periodic Table
  8. Property It is how easy it is for an atom to lose an electron
  9. A substance that cannot be broken down into simpler substances by any chemical means
  10. Removal of air molecules to prevent metal corrosion
  11. Breaking down of metals due to chemical reactions (ex: rusting)
  12. Sacrificial metal
  13. One of the elements of metal corrosion, it is a substance that is capable of conducting electricity
  14. The nearer the valence electrons to the _, the harder it is to "give them away"
  15. Chemical compound that decreases the corrosion rate of a metal
  16. An element with an electronic configuration of |[Ar] 3d10 4s2 4p6| at a neutral state
  17. Most malleable metal, It has an atomic no. of 79

29 Clues: Sacrificial metal • Negatively charged ion • Lightest of all metals • Positively charged ion • An element with a symbol of Rh • Element with an atomic no. of 117 • Element with an atomic no. of 118 • Horizontal row in the Periodic Table • The most abundant metal in the universe • It is how easy for an atom to gain an electron • Regions where electrons can be "possibly" found • ...

Chemistry Vocabulary Crossword Puzzle 2020-11-11

Chemistry Vocabulary Crossword Puzzle crossword puzzle
Across
  1. a chemical reaction that absorbs heat
  2. substance that does the dissolving in a chemical solution
  3. chemical bond between atoms caused by an electrostatic force in opposite charged ions
  4. expression which states the number and types of atoms in a molecule
  5. part of the atomic nucleus that has a charge of +1
  6. chemical species formed when two or more elements form a chemical bond
  7. a substance that cannot be subdivided and is identified by the number of protons in its atoms
  8. chemical mass unit equal to Avogadro's number
  9. any element found in the last column of the periodic table
  10. part of the atomic nucleus that has a charge of -1
  11. whole number that is the sum of protons and neutrons in the atomic nucleus
  12. outer electron that is most likely to participate in a bond formation or a chemical reaction
  13. part of the atomic nucleus that has a charge of 0
  14. measure of hydrogen ion in a solution showing the acidity or basicity of a substance
  15. a chemical species that accepts protons
  16. chemical bond between atoms where electrons are more or less evenly shared
Down
  1. a chemical reaction that releases heat
  2. the arrangement of elements by increase of their atomic number
  3. homogenous mixture of two or more substances
  4. atoms that have the same number of protons but different amount of neutrons changing its atomic weight
  5. the number of protons in the nucleus of an atom of an element
  6. a chemical species that donates protons
  7. any element found in the 1st column of the periodic table
  8. substance that is dissolved in a chemical solution
  9. substance formed as a result of a chemical reaction
  10. starting material for a chemical reaction
  11. any element found in the 2nd column of the periodic table
  12. the ability to do work

28 Clues: the ability to do work • a chemical reaction that absorbs heat • a chemical reaction that releases heat • a chemical species that donates protons • a chemical species that accepts protons • starting material for a chemical reaction • homogenous mixture of two or more substances • chemical mass unit equal to Avogadro's number • ...

Science Vocab 2020-10-13

Science Vocab crossword puzzle
Across
  1. a chemical element that mostly lacks the characteristics of a metal
  2. an ion with a positive charge
  3. a distinct and homogeneous form of matter
  4. an ion with a negative charge
  5. the distribution of electrons of an atom or molecule in atomic or molecular orbitals
  6. a compound composed of a monatomic metal cation and a monatomic nonmetal anion
  7. name given to a horizontal row of the periodic table
  8. a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
  9. an electron of an atom located in the outermost shell
Down
  1. a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties
  2. a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds
  3. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
  4. any of the chemical elements belonging to the s and p blocks of the periodic table
  5. an element whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
  6. a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions
  7. name given to a vertical column of the periodic table
  8. A figure, letter, or symbol written below and to the side of another
  9. a group of elements with similar chemical properties
  10. a chemical bond that involves the sharing of electron pairs between atoms
  11. a substance formed from two or more elements chemically united in fixed proportions
  12. a substance composed of exactly two different elements, which are substances that cannot be simplified further by chemical means
  13. the general tendency of a set of data to change
  14. a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule

23 Clues: an ion with a positive charge • an ion with a negative charge • a distinct and homogeneous form of matter • the general tendency of a set of data to change • a group of elements with similar chemical properties • name given to a horizontal row of the periodic table • name given to a vertical column of the periodic table • ...

Unit B Crossword Miguel H. and Emmanuel T. 9C 2018-11-13

Unit B Crossword Miguel H. and Emmanuel T. 9C crossword puzzle
Across
  1. positively charged particles
  2. and electrons of that atom; measured in
  3. number of protons in the nucleus of one atom in an element
  4. mass of one atom of an element
  5. when energy is absorbed into, especially during a chemical reaction
  6. measure of atomic mass; 1 amu is equal to 1/12th the mass of a carbon-12 atom
  7. which are formed from a nonmetal and a metal which balance out
  8. the orbit of an electron around the nucleus of an atom
  9. when energy is given off from, especially from a chemical reaction
  10. positively charged centre of an atom; contains protons and neutrons
  11. second most reactive elements, group 2 of the periodic table
  12. which are formed from two nonmetals
Down
  1. most reactive non metals
  2. dull, brittle insulators
  3. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  4. neutral particles
  5. anything that has mass and occupies space
  6. group 1 metals in the periodic table, not including hydrogen;the most reactive of the metals
  7. also known as rusting, is caused when oxygen reacts with a metal
  8. that are made up for 2 or more substances
  9. substances that are made up of one type of matter and have a unique set of characteristics
  10. from the total number of protons,
  11. atom that has become electrically charged because it has lost or gained electrons; a positive ion is an atom that has lost one or more electrons;a negative ion is an atom that has gained one or more electrons
  12. least reactive substances
  13. Molecule
  14. invisible negatively charged particle that orbits the nucleus of an atom
  15. shiny, malleable, ductile element that conducts electricity
  16. The non-metal in the periodic table with the symbol O

28 Clues: Molecule • neutral particles • most reactive non metals • dull, brittle insulators • least reactive substances • positively charged particles • mass of one atom of an element • from the total number of protons, • which are formed from two nonmetals • and electrons of that atom; measured in • anything that has mass and occupies space • that are made up for 2 or more substances • ...

Unit B Chemistry Crossword - Camille Lugtu 9A 2018-11-14

Unit B Chemistry Crossword - Camille Lugtu 9A crossword puzzle
Across
  1. mass of one atom of an element
  2. number of protons in the nucleus of one atom in an element
  3. substances that are made up of one type of matter and have a unique set of characteristics
  4. which are formed from a nonmetal and a metal which balance out
  5. group 1 metals in the periodic table, not including hydrogen; the most reactive of the metals
  6. which are formed from two nonmetals
  7. invisible negatively charged particle that orbits the nucleus of an atom
  8. when energy is given off from, especially from a chemical reaction
  9. atom that has become electrically charged because it has lost or gained electrons; a positive ___ is an atom that has lost one or more electrons; a negative ___ is an atom that has gained one or more electrons
  10. measure of atomic mass; 1 amu is equal to 1/12th the mass of a carbon-12 atom
  11. the orbit of an electron around the nucleus of an atom
  12. The non-metal in the periodic table with the symbol O
  13. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  14. shiny, malleable, ductile element that conducts electricity
Down
  1. dull, brittle insulators
  2. that are made up for 2 or more substances
  3. from the total number of protons,
  4. anything that has mass and occupies space
  5. and electrons of that atom; measured in
  6. second most reactive elements, group 2 of the periodic table
  7. also known as rusting, is caused when oxygen reacts with a metal
  8. most reactive non metals
  9. positively charged centre of an atom; contains protons and neutrons
  10. has the properties of metals and non metals
  11. positively charged particles
  12. when energy is absorbed into, especially during a chemical reaction
  13. neutral particles
  14. least reactive substances

28 Clues: neutral particles • dull, brittle insulators • most reactive non metals • least reactive substances • positively charged particles • mass of one atom of an element • from the total number of protons, • which are formed from two nonmetals • and electrons of that atom; measured in • that are made up for 2 or more substances • anything that has mass and occupies space • ...

The Structure of the Atom and Periodic Table 2021-10-05

The Structure of the Atom and Periodic Table crossword puzzle
Across
  1. The sum of protons and nuetrons (2 words)
  2. Symbol for sodium
  3. This group of elements are called rare earth, very reactive, hard to separate
  4. symbol for silver
  5. this is the same as the number of protons in an atom
  6. This element is often made into electrical wire
  7. These electrons are found farthest from the nucleus
  8. This is the atomic number for fluorine
  9. Name of an element used in fluorescent signs
  10. This group of elements are the most reactive metals (2 words)
  11. This is 1/12 the mass of a carbon-atom is the standard for measuring the mass of an atom (3words)
  12. Group of elements that conduct heat well
  13. A column of elements
  14. A group of dense, radioactive metals
  15. Positively charged subatomic particle
  16. This radioactive gas can accumulate in houses
Down
  1. This group of elements are non-reactive due to their full outer shell (2 words)
  2. 3 of these make up either a proton or a neutron
  3. this group can conduct some heat and includes silicon and boron
  4. This groups of elements are called the salt-formers
  5. This element is an alkaline earth metal
  6. Element 82
  7. Group of elements that are used in wiring and jewelry
  8. the negative charged subatomic particle
  9. We need this important gas for living
  10. The man who organized the periodic table to atmomic mass and repeating properties
  11. Element used in balloons
  12. the subatomic particle with approximately the same mass as the proton
  13. The region surrounding the nucleus which is occupied by electrons (2 words)
  14. Building block of matter
  15. The same elements but have different mass numbers
  16. This element is found in organic compounds
  17. Center of the aton
  18. A row of elements on the periodic table
  19. The man who reorganized the periodic table by atomic mass
  20. The scientist who found electrons to reside in orbits around the nucleus

36 Clues: Element 82 • Symbol for sodium • symbol for silver • Center of the aton • A column of elements • Element used in balloons • Building block of matter • A group of dense, radioactive metals • We need this important gas for living • Positively charged subatomic particle • This is the atomic number for fluorine • This element is an alkaline earth metal • ...

Chemistry Review 2024-11-10

Chemistry Review crossword puzzle
Across
  1. A group of atoms bonded together, representing the smallest fundamental unit of a compound.
  2. A positively charged ion formed when an atom loses electrons.
  3. Energy: The energy required to remove an electron from an atom.
  4. A type of bond formed when one atom transfers an electron to another.
  5. The tendency of an atom to attract electrons in a bond.
  6. Bond: A covalent bond with unequal sharing of electrons.
  7. A negatively charged ion formed when an atom gains electrons.
  8. Force: The force of attraction or repulsion between charged particles, central to ionic bonding.
  9. Metals: Elements in Group 1 of the periodic table, known for their high reactivity.
  10. Electrons: Electrons in the outermost energy level of an atom, involved in bonding.
  11. Positively charged particles found in the nucleus of an atom.
Down
  1. Affinity: The energy change that occurs when an atom gains an electron.
  2. Metals: Elements found in the central block of the periodic table, known for forming colorful compounds.
  3. Table: A chart that organizes elements by atomic number and properties.
  4. A mixture of metals, often enhancing properties like strength or corrosion resistance.
  5. The process of removing an electron from an atom or molecule.
  6. A type of bond formed when atoms share electrons.
  7. A type of bond found between metal atoms where electrons are shared in a "sea" of electrons.
  8. Gases: Group 18 elements, known for being inert due to a full outer electron shell.
  9. Number: The number of protons in an atom's nucleus, defining the element.
  10. Negatively charged subatomic particles involved in bonding.
  11. Elements with properties between metals and non-metals, often found along the "staircase" line.
  12. Bond: A covalent bond with equal sharing of electrons.
  13. Rule: The concept that atoms strive to have eight electrons in their outer shell.
  14. Radius: The distance from the nucleus to the outermost electron shell of an atom.

25 Clues: A type of bond formed when atoms share electrons. • Bond: A covalent bond with equal sharing of electrons. • The tendency of an atom to attract electrons in a bond. • Bond: A covalent bond with unequal sharing of electrons. • Negatively charged subatomic particles involved in bonding. • A positively charged ion formed when an atom loses electrons. • ...

Final Exam Review 2023-01-17

Final Exam Review crossword puzzle
Across
  1. definite volume and shape
  2. length between two points
  3. smallest unit of matter
  4. center of atom
  5. energy that is stored due to position or shape
  6. study of energy and matter and the interactions of forces and motion
  7. resources that will take millions of years to replace once they have all been used
  8. resistance of a liquid to flow
  9. energy due to motion
  10. neutral subatomic particle
  11. mixtures where parts are not evenly distributed and are easily noticeable
  12. ______ variable changes in due to the manipulated variable
  13. definite volume indefinite shape
  14. distance over time
  15. _____ properties will change the identity of a substance when observed
  16. change in speed over time
  17. mixtures where parts are distributed evenly
  18. _____ properties will not change the identity of a substance when observed or measured
  19. gas to solid phase change
  20. study of composition, structure, and properties of matter
Down
  1. positively charged subatomic particle
  2. equals number of protons + neutrons in an atom
  3. resources that can be replaced in a relatively short period of time
  4. length and direction from starting and end points
  5. units for force
  6. proposed answer to a question
  7. force of attraction between two masses
  8. atoms of the same element with a different number of neutrons
  9. column on periodic table
  10. two or more elements chemically combined
  11. row on periodic table
  12. solid to gas phase change
  13. creator of the periodic table
  14. force that is in opposite direction of an object's movement
  15. a push or pull
  16. indefinite volume and shape
  17. negatively charged subatomic particle
  18. ______ variable is the variable you change in an experiment
  19. statement that summarizes a pattern found in nature
  20. equals number of protons in an atom
  21. well tested explanation to an observed event.
  22. mass divided by volume

42 Clues: center of atom • a push or pull • units for force • distance over time • energy due to motion • row on periodic table • mass divided by volume • smallest unit of matter • column on periodic table • definite volume and shape • length between two points • solid to gas phase change • change in speed over time • gas to solid phase change • neutral subatomic particle • indefinite volume and shape • ...

Science Crossword Puzzle 2024-09-06

Science Crossword Puzzle crossword puzzle
Across
  1. Change a change from one state to another
  2. number multiplied by variable
  3. basic unit of a chemical element
  4. uncharged atomic particle that has mass
  5. shiny, malleable, solid
  6. a simple substance
  7. Table of Elements elements in a table
  8. anything that has mass and takes up space
  9. letter or number to the side of another character
  10. Symbol abbreviations for an element
  11. two or more separate elements
Down
  1. group of atoms held together
  2. Number number of protons in the nucleus
  3. stable subatomic particle
  4. lacks metal attributes
  5. Change change of chemical substances
  6. subatomic particle with negative energy
  7. Mass total mass in an atom
  8. Formula a number of atoms of each element in a compound
  9. properties between metals and nonmetals

20 Clues: a simple substance • lacks metal attributes • shiny, malleable, solid • stable subatomic particle • Mass total mass in an atom • group of atoms held together • number multiplied by variable • two or more separate elements • basic unit of a chemical element • Symbol abbreviations for an element • Table of Elements elements in a table • Change change of chemical substances • ...

SCIENCE 2016-01-17

SCIENCE crossword puzzle
Across
  1. The breaking down of rocks on the earth's surface is ____
  2. Which term refers to the number of protons in an atom and helps to place elements on the Periodic Table?
  3. Which body system pumps and transports the blood to all parts of the body as well as supply oxygen and remove waste products from body tissues?
  4. This is the structure in plant cells that captures the sun's energy and changes it into chemical energy.
  5. This structure, found in cells, assembles proteins.
  6. The study of interactions between organisms and their environment is called_____
  7. On the Periodic Table, all elements that are in the same horizontal rows are considered to be in the same ____
Down
  1. What is the hormone responsible for causing sudden emotional changes and sexual feelings that occur in males during puberty?
  2. A species in danger of becoming extinct in the near future is referred to as a(an)_________species.
  3. The outer layers of plants, fungi and some protist cells which support and protect the cell are called the _____
  4. What day is it when the sun is at its lowest elevation in the sky all year and we experience the shortest day of the year?
  5. Which area of Earth science includes the study of stars?
  6. Which of the following nutrients is used to build and repair cells?
  7. On the Periodic Table, elements that are in the same vertical column are considered to be in the same_____
  8. Which subatomic particle has a positive charge?

15 Clues: Which subatomic particle has a positive charge? • This structure, found in cells, assembles proteins. • Which area of Earth science includes the study of stars? • The breaking down of rocks on the earth's surface is ____ • Which of the following nutrients is used to build and repair cells? • ...

Earth Systems 3209: Chemistry Basics 2014-11-04

Earth Systems 3209: Chemistry Basics crossword puzzle
Across
  1. The smallest amount of a compound that still shares the properties of it
  2. A subtance made of only one type of atom
  3. A compound made when nonmetals bond together
  4. The smallest amount of an element that still shares the properties of it
  5. A neutral subatomic particle found within the nucleus of an atom
  6. A compound made when metals bond with nonmetals
  7. Anything that has mass and takes up space
Down
  1. The positively charged center of an atom
  2. Elements to the right side of the periodic table
  3. A negatively charged subatomic particle found that orbits the nucleus
  4. Elements to the left side of the periodic table
  5. A substance made of more than one type of element
  6. A positively charged subatomic particle found within the nucleus of an atom
  7. A charged atom formed by gaining or losing electrons

14 Clues: The positively charged center of an atom • A subtance made of only one type of atom • Anything that has mass and takes up space • A compound made when nonmetals bond together • Elements to the left side of the periodic table • A compound made when metals bond with nonmetals • Elements to the right side of the periodic table • ...

Chemistry Crossword 2017-12-08

Chemistry Crossword crossword puzzle
Across
  1. A negatively charged ion
  2. A pure substance that cannot be broken down
  3. Elements found in the first column of the periodic table
  4. A chemical, present during the beginning of a chemical reaction that is used up doing the reaction
  5. This is used to compare the acidity of solutions
  6. An aqueous solution that neutralizes a base
Down
  1. A pure substance, formed with 2 or more non-metals
  2. Has a pH of 7, not acidic or basic
  3. An aqueous solution that turns red litmus blue
  4. A row of elements in the periodic table

10 Clues: A negatively charged ion • Has a pH of 7, not acidic or basic • A row of elements in the periodic table • A pure substance that cannot be broken down • An aqueous solution that neutralizes a base • An aqueous solution that turns red litmus blue • This is used to compare the acidity of solutions • A pure substance, formed with 2 or more non-metals • ...

science 2023-04-14

science crossword puzzle
Across
  1. a horizontal row in the periodic table that tells you how many energy levels an element has
  2. a column in the periodic table that tells you how many valence electrons a element has
  3. a small natural particle in atoms
  4. is a poor conductor and brittle
  5. a substance that can't be broken down
Down
  1. a small negatively charged particle in atoms
  2. a small positively charged particle in atoms
  3. solid material that is hard, shiny, and malleable
  4. basic unit of chemical elements
  5. an element that has both metal and non metal properties

10 Clues: is a poor conductor and brittle • basic unit of chemical elements • a small natural particle in atoms • a substance that can't be broken down • a small negatively charged particle in atoms • a small positively charged particle in atoms • solid material that is hard, shiny, and malleable • an element that has both metal and non metal properties • ...

Sun Crossword Puzzle 2022-11-07

Sun Crossword Puzzle crossword puzzle
Across
  1. areas that appear dark on the surface of the Sun
  2. the second element of the periodic table
  3. a reddish glowing layer of gas above the sun's photosphere
  4. an intense burst of radiation coming from the release of magnetic energy
  5. a dying star in the final stages of stellar evolution
Down
  1. the transfer of heat through fluid
  2. the first element of the periodic table
  3. created by the outward expansion of plasma from the Corona
  4. outer layer of the Sun's atmosphere
  5. the process that powers the sun and stars.

10 Clues: the transfer of heat through fluid • outer layer of the Sun's atmosphere • the first element of the periodic table • the second element of the periodic table • the process that powers the sun and stars. • areas that appear dark on the surface of the Sun • a dying star in the final stages of stellar evolution • created by the outward expansion of plasma from the Corona • ...

SCIENCE 2016-01-17

SCIENCE crossword puzzle
Across
  1. Which of the following nutrients is used to build and repair cells?
  2. This is the structure in plant cells that captures the sun's energy and changes it into chemical energy.
  3. The study of interactions between organisms and their environment is called_____
  4. Which term refers to the number of protons in an atom and helps to place elements on the Periodic Table?
  5. On the Periodic Table, elements that are in the same vertical column are considered to be in the same_____
  6. A species in danger of becoming extinct in the near future is referred to as a(an)_________species.
  7. Which area of Earth science includes the study of stars?
Down
  1. What is the hormone responsible for causing sudden emotional changes and sexual feelings that occur in males during puberty?
  2. The breaking down of rocks on the earth's surface is ____
  3. Which body system pumps and transports the blood to all parts of the body as well as supply oxygen and remove waste products from body tissues?
  4. The outer layers of plants, fungi and some protist cells which support and protect the cell are called the _____
  5. On the Periodic Table, all elements that are in the same horizontal rows are considered to be in the same ____

12 Clues: Which area of Earth science includes the study of stars? • The breaking down of rocks on the earth's surface is ____ • Which of the following nutrients is used to build and repair cells? • The study of interactions between organisms and their environment is called_____ • ...

Science Crossword Puzzle 2023-08-31

Science Crossword Puzzle crossword puzzle
Across
  1. The ability of a material to conduct electricity of heat
  2. Elements with similar properties found on the left side of the staircase
  3. Formula A notation used by scientists to show the number of atoms in a molecule
Down
  1. Symbol One or two letters abbreviation from the element’s name
  2. The tendency of a substance to undergo chemical changes
  3. table A reference for associating the name and symbol of an element
  4. Elements with similar properties found on the right side of the staircase on the periodic table
  5. Elements with similar properties that create a staircase on the periodic table

8 Clues: The tendency of a substance to undergo chemical changes • The ability of a material to conduct electricity of heat • Symbol One or two letters abbreviation from the element’s name • table A reference for associating the name and symbol of an element • Elements with similar properties found on the left side of the staircase • ...

Boring Science 2022-05-04

Boring Science crossword puzzle
Across
  1. Chemical
  2. a minute portion of matter.
  3. What is air
  4. more separate elements
  5. science
  6. What is a table
  7. battle
  8. the chemical element of atomic number 6
  9. the matter from which a thing is or can be made.
  10. science
  11. a substance made by mixing
  12. Funny talking
Down
  1. essential or characteristic
  2. It’s hot
  3. Some smart
  4. physical substance
  5. it’s runny
  6. Small hole
  7. Smart
  8. your things
  9. it’s stinky
  10. hard

22 Clues: hard • Smart • battle • science • science • Chemical • It’s hot • Some smart • it’s runny • Small hole • What is air • your things • it’s stinky • Funny talking • What is a table • physical substance • more separate elements • a substance made by mixing • essential or characteristic • a minute portion of matter. • the chemical element of atomic number 6 • the matter from which a thing is or can be made.

List #13 2023-11-30

List #13 crossword puzzle
Across
  1. building for sick people
  2. a soft like voice
  3. at the top
  4. old family members
  5. best friend
  6. to leave beside
  7. color changes
  8. formal argument
  9. like alike
  10. more then one
  11. on the periodic table
  12. inside of anything
Down
  1. helps with donations
  2. open sweeter
  3. outskirts of a city
  4. opposite of horizontal
  5. has four sides
  6. good enough
  7. city area
  8. fair and just
  9. an estimation

21 Clues: city area • at the top • like alike • good enough • best friend • open sweeter • color changes • fair and just • an estimation • more then one • has four sides • to leave beside • formal argument • a soft like voice • old family members • inside of anything • outskirts of a city • helps with donations • on the periodic table • opposite of horizontal • building for sick people

Kerly crossword 2020-03-31

Kerly crossword crossword puzzle
Across
  1. a group of energy levels of an atom
  2. the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom
  3. the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
  4. In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule
  5. the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
Down
  1. The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends.
  2. a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
  3. tending to lose electrons and form positive ions in chemical reactions.
  4. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

9 Clues: a group of energy levels of an atom • tending to lose electrons and form positive ions in chemical reactions. • In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule • ...

gvh 2018-01-17

gvh crossword puzzle
Across
  1. Positively charged ion
  2. Horizontal row in the Periodic Table
  3. The 'exponents' in an element's electronic configuration stands for its _
  4. Removal of air molecules to prevent metal corrosion
  5. An atom becomes an/a _ when electrons are lost of gained
  6. The most abundant metal in the universe
  7. Sacrificial metal
  8. An element with a symbol of Rh
  9. Property It is how easy it is for an atom to lose an electron
  10. Also known as vapor galvanizing or dry galvanizing
  11. First person to arrange the elements according to atomic no., "Developer" of the Periodic Table (Last name)
  12. An element with an electronic configuration of |[Ar] 3d10 4s2 4p6| at a neutral state
Down
  1. It can be used to identify an element's atomic no.
  2. It is the Element's symbol Mass number (ex: Fe-56)
  3. Corrosion Breaking down of metals due to chemical reactions (ex: rusting)
  4. Element with an atomic no. of 117
  5. Regions where electrons can be "possibly" found
  6. Aside from Hydrogen, It is the only non-metal placed in the reactivity series
  7. Eliminating (or Lowering) the amount of water or moisture in a certain area to prevent metal corrosion
  8. Lightest of all metals
  9. Chemical compound that decreases the corrosion rate of a metal
  10. Negatively charged ion
  11. Most malleable metal, It has an atomic no. of 79
  12. One of the elements of metal corrosion, it is a substance that is capable of conducting electricity
  13. The most stable/inert group in the periodic table
  14. The nearer the valence electrons to the _, the harder it is to "give them away"
  15. Element with an atomic no. of 118
  16. A substance that cannot be broken down into simpler substances by any chemical means
  17. Metallic Property It is how easy for an atom to gain an electron

29 Clues: Sacrificial metal • Positively charged ion • Lightest of all metals • Negatively charged ion • An element with a symbol of Rh • Element with an atomic no. of 117 • Element with an atomic no. of 118 • Horizontal row in the Periodic Table • The most abundant metal in the universe • Regions where electrons can be "possibly" found • Most malleable metal, It has an atomic no. of 79 • ...

Matter 2021-11-20

Matter crossword puzzle
Across
  1. The smallest single neutral particle that makes up all life.
  2. H2O
  3. the relative average of all isotopes of an element.
  4. An experiment took place in which microscopes picked up where the positively charged alpha particle rays went when directed at a thin piece of gold.
  5. positively charged subatomic particle
  6. the name of the outermost shell in an atoms electron configuration
  7. the center of an atom that contains the dna, protons and neutrons
  8. Two or more atoms bonded together.
  9. a charge that electrons have
  10. an ion that has lost electrons
  11. the rows of the periodic table
  12. JJ created a model of an atom where the electrons are scattered in a mass of positively charged nucleus replicating a plum pudding.
Down
  1. negatively charged subatomic particle
  2. a charge that protons have
  3. the different types of atoms of an element that contains different amounts of neutrons.
  4. the number of protons and electrons added together.
  5. the number of protons, electrons and place in the periodic table
  6. John's atomic theory consisted of, all gas has weight, atoms are the smallest particle, simple multiple proportion, elements combine into molecules of simple ratios, elements join together to form compounds, water always contains twice as much hydrogen as oxygen, when chemicals react with each other the total mass of the chemicals does not change, pure oxygen has the same properties wherever it is found on the Earth or in space, gases some of which are invisible, have mass and different gases have different masses, modern microscopes produce images of surfaces that look bumpy
  7. a configuration of rings in which the electrons are placed,
  8. the columns of the periodic table
  9. an atom that has gained or lost an electron
  10. a neutrally charged subatomic particle
  11. A pure substance consisting of one type of atom.
  12. an ion that has gained electrons
  13. Two or more different elements bonded together.

25 Clues: H2O • a charge that protons have • a charge that electrons have • an ion that has lost electrons • the rows of the periodic table • an ion that has gained electrons • the columns of the periodic table • Two or more atoms bonded together. • negatively charged subatomic particle • positively charged subatomic particle • a neutrally charged subatomic particle • ...

Gold & Silver 2022-02-03

Gold & Silver crossword puzzle
Across
  1. gold or silver heated in a crucible and transferred into a mold
  2. How gold comes out of the ground
  3. periodic table symbol of gold
  4. a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted
  5. periodic table symbol for silver
  6. system by which the value of a currency was defined in terms of gold
  7. The US gold and silver 1 oz Coin
  8. natural accumulations of minerals in the earth crust
  9. originated to show the purity of gold in a piece of gold jewelry
  10. Precious metals have been used for this for centuries
  11. personal ornaments, such as necklaces, rings, or bracelets, that are typically made from or contain precious metal.
  12. a form of weight for metal
  13. "Royal Water"
  14. Spanish for gold
  15. One of the largest gold nuggets ever found
Down
  1. 925/1000 parts silver
  2. made by forcing gold or silver into a die or mold
  3. Adding to your metals
  4. pure substance consisting only of atoms that all have the same numbers of protons in their nuclei
  5. Silver in Latin
  6. 1000 grams
  7. Generally Copper with a thin layer of gold or silver applied on top
  8. Metal composed of 2 or more elements
  9. Gold and Silver are part of this periodic table
  10. Uncoined Gold or Silver in Bars or rounds
  11. a person who searches for mineral deposits
  12. the testing of a metal or ore to determine its ingredients and quality
  13. Pure gold
  14. measure of the fineness (i.e., purity) of gold
  15. 180 Troy Grains
  16. Latin for Gold
  17. At one point the largest manufacturer of precious metals that was sold to BASF in 2006 for $5 Billion
  18. a form of placer mining
  19. a block of gold or silver
  20. Spanish for silver
  21. a vein of metal ore in the earth

36 Clues: Pure gold • 1000 grams • "Royal Water" • Latin for Gold • Silver in Latin • 180 Troy Grains • Spanish for gold • Spanish for silver • 925/1000 parts silver • Adding to your metals • a form of placer mining • a block of gold or silver • a form of weight for metal • periodic table symbol of gold • How gold comes out of the ground • periodic table symbol for silver • ...

Chapter 10 Vocabulary 2016-01-10

Chapter 10 Vocabulary crossword puzzle
Across
  1. the lowest available level within an atom (2W)
  2. colored lines generated when light emitted by a gas is shown through a spectroscope (2W)
  3. the last name of a French physicist who suggested that all objects have wave properties
  4. small measures of energy
  5. a cloudlike region around the nucleus where electrons are located
  6. the property of an electron that describes its appearance of spinning on an axis like a globe
  7. the number that indicates the shape of the orbital (4W)
  8. horizontal groups of elements in the periodic table
  9. the number of electrons a p orbital can hold
  10. noble gas configuration (2W)
  11. a measurement of the number of waves that pass a particular point per second
  12. a new branch of physics (2W)
  13. the B groups and group VIII (2W)
Down
  1. a particle representing a quantum of light or other electromagnetic radiation
  2. principle that states that energy levels in atoms are written; n=1, n=2... (3W)
  3. a way of showing the arrangement of electrons in an atom (2W)
  4. also called families, vertical groups of elements in the periodic table
  5. two possible values for spin, +1/2 or -1/2 (3W)
  6. an atomic orbital can hold a maximum of 2 electrons, which most have opposite (3W)
  7. the orbital arrangement of electrons in an atom (2W)
  8. contains electrons in the orbitals (3W)
  9. one way energy travels through space (3W)
  10. an A group element (2W)
  11. the electrons in the outermost energy level of an atom (2W)
  12. electrons fill the lowest energy level first (2W)
  13. electrons on the outermost electron shell (2W)
  14. the publisher of the periodic table
  15. a measurement of how fast a wave travels in space
  16. the distance between consecutive peaks in a wave
  17. within a sublevel, place one electron per orbital before pairing them (2W)

30 Clues: an A group element (2W) • small measures of energy • noble gas configuration (2W) • a new branch of physics (2W) • the B groups and group VIII (2W) • the publisher of the periodic table • contains electrons in the orbitals (3W) • one way energy travels through space (3W) • the number of electrons a p orbital can hold • the lowest available level within an atom (2W) • ...

Chemistry Review 2023-05-01

Chemistry Review crossword puzzle
Across
  1. negative value for H
  2. positive subatomic particle
  3. used to quantify the heat flow into or out of a system
  4. electrons are arranged in a "sea of electrons"
  5. a chemical geometry with a 180 degree angle
  6. type of radiation that is pure energy
  7. the weakest of the intermolecular forces
  8. unit of pressure
  9. the capacity to do work
  10. the rows of the periodic table
  11. type of chemical reaction in which one product is formed
  12. 1s2 2s2 2p6 3s2 3p6 4s2 3d6
  13. gas law that related pressure, volume, temperature, and amount of a gas
  14. bond between a nonmetal and a nonmetal
  15. credited for the Atomic Theory of Atoms
  16. the unit of energy, heat, or work
  17. type of chemical reaction in which water and carbon dioxide are products
  18. used to measure volume of a liquid
  19. most electronegative element
Down
  1. the bond that holds two molecules together
  2. first part of the atom to be discovered
  3. unit of temperature
  4. electron geometry of methane
  5. group 1 of the periodic table
  6. studies the rate at which a chemical reaction occurs
  7. happens when there are too many protons in the nucleus and neutrons cannot hold them in
  8. a metal that is a liquid at room temperature
  9. ionic, covalent, or metallic bond
  10. a force between H and N,O, or F
  11. the study of heat released or required by a chemical reaction
  12. mass divided by volume
  13. created the "Nuclear" model of the atom, after the gold foil experiment
  14. a unit to measure concentration
  15. created the "Plum Pudding" model of the atom
  16. group 7 on the periodic table
  17. type of replacement reaction where one element "trades places" with an element in a compound
  18. Valence shell electron pair repulsion
  19. result of an electronegativity difference greater than 0.3
  20. bond between a metal and a nonmetal
  21. 1s2 2s2 2p6 3s2 3p6 4s2

40 Clues: unit of pressure • unit of temperature • negative value for H • mass divided by volume • the capacity to do work • 1s2 2s2 2p6 3s2 3p6 4s2 • positive subatomic particle • 1s2 2s2 2p6 3s2 3p6 4s2 3d6 • electron geometry of methane • most electronegative element • group 1 of the periodic table • group 7 on the periodic table • the rows of the periodic table • ...

Chemistry Vocabulary Crossword Puzzle 2020-11-11

Chemistry Vocabulary Crossword Puzzle crossword puzzle
Across
  1. a chemical reaction that absorbs heat
  2. substance that does the dissolving in a chemical solution
  3. chemical bond between atoms caused by an electrostatic force in opposite charged ions
  4. expression which states the number and types of atoms in a molecule
  5. part of the atomic nucleus that has a charge of +1
  6. chemical species formed when two or more elements form a chemical bond
  7. a substance that cannot be subdivided and is identified by the number of protons in its atoms
  8. chemical mass unit equal to Avogadro's number
  9. any element found in the last column of the periodic table
  10. part of the atomic nucleus that has a charge of -1
  11. whole number that is the sum of protons and neutrons in the atomic nucleus
  12. outer electron that is most likely to participate in a bond formation or a chemical reaction
  13. part of the atomic nucleus that has a charge of 0
  14. measure of hydrogen ion in a solution showing the acidity or basicity of a substance
  15. a chemical species that accepts protons
  16. chemical bond between atoms where electrons are more or less evenly shared
Down
  1. a chemical reaction that releases heat
  2. the arrangement of elements by increase of their atomic number
  3. homogenous mixture of two or more substances
  4. atoms that have the same number of protons but different amount of neutrons changing its atomic weight
  5. the number of protons in the nucleus of an atom of an element
  6. a chemical species that donates protons
  7. any element found in the 1st column of the periodic table
  8. substance that is dissolved in a chemical solution
  9. substance formed as a result of a chemical reaction
  10. starting material for a chemical reaction
  11. any element found in the 2nd column of the periodic table
  12. the ability to do work

28 Clues: the ability to do work • a chemical reaction that absorbs heat • a chemical reaction that releases heat • a chemical species that donates protons • a chemical species that accepts protons • starting material for a chemical reaction • homogenous mixture of two or more substances • chemical mass unit equal to Avogadro's number • ...

Chemistry Crossword. 2017-11-08

Chemistry Crossword. crossword puzzle
Across
  1. mass of one atom of an element calculated from the total number of protons, neutrons, and electrons of that atom
  2. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance\
  3. positively charged centre of an atom
  4. property that describes the physical appearance and composition of a substance
  5. an experiment in which all reactants and all products of a chemical reaction are accounted for
  6. a reaction that takes place when two or more substances react to form new substances
  7. group 2 elements in the periodic table
  8. dull, brittle element that does not conduct electricity
  9. amount of mass in a given volume of a substance
  10. group 18 elements in the periodic table
  11. homogeneous mixture
Down
  1. description of a solid that can be stretched into a long wire
  2. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  3. the smallest part of an element that is representative of that element
  4. number of protons in the nucleus of one atom of an element
  5. slow chemical change that occurs when oxygen in the air reacts with metal
  6. substance that reacts with another substance or substances in a chemical reaction to create a new substances with different properties
  7. metals group 1 elements in the periodic table
  8. principle that matter is not created or destroyed in a chemical reaction
  9. group of atoms acting as one
  10. change in the appearance or state of a substance that does not change the composition
  11. changing of state from a solid to a liquid
  12. chemical combination of two or more elements in a specific ratio
  13. an experiment in which one or more products of a chemical reaction can escape
  14. mass of a substance that can dissolve in a given amount of solvent to form a saturated solution at a given temperature

25 Clues: homogeneous mixture • group of atoms acting as one • positively charged centre of an atom • group 2 elements in the periodic table • group 18 elements in the periodic table • changing of state from a solid to a liquid • metals group 1 elements in the periodic table • amount of mass in a given volume of a substance • dull, brittle element that does not conduct electricity • ...

chemistry 2017-11-15

chemistry crossword puzzle
Across
  1. The phase change from a solid to a liquid
  2. the temperature in which the substance starts to melt
  3. the metals of Group 1 on the periodic table
  4. an atom that is defined by its atomic number
  5. an element which is not metallic
  6. H2O a chemical substance, a major part of cells and Earth, and covalently bonded
  7. Group 17 on the Periodic Table and are all non-metals
  8. A state of matter in which cohesive force is less than or equal to the separating force
  9. the change of one or more substances into another or multiple substances
  10. formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid
  11. homogeneous mixture made up of multiple substances. It is made up of solutes and solvents.
  12. The amount of mass per unit volume. d = m/V
Down
  1. a positive unit or subatomic particle that has a positive charge
  2. is the same as a proton or electron but without a charge
  3. energy transferred from one system to another by thermal interaction
  4. the metals of Group 2 on the periodic table
  5. gases group 18 elements, those whose outer electron shell is filled
  6. material with definite chemical composition
  7. the part of the solution that is mixed into the solvent (NaCl in saline water)
  8. particles that fill their container though have no definite shape or volume
  9. the number representing an element which corresponds with the number of protons within the nucleus
  10. the temperature in which the substance starts to boil
  11. a phase transition from solid to limewater fuel or gas
  12. the part of the solution that dissolves the solute (H2O in saline water
  13. Chemical element that is a good conductor of both electricity and heat and forms cations and ionic bonds with non-metals

25 Clues: an element which is not metallic • The phase change from a solid to a liquid • the metals of Group 2 on the periodic table • material with definite chemical composition • the metals of Group 1 on the periodic table • The amount of mass per unit volume. d = m/V • an atom that is defined by its atomic number • the temperature in which the substance starts to melt • ...

Kallie 2023-05-10

Kallie crossword puzzle
Across
  1. An element that has some characteristics of both metals and nonmetals v
  2. A Small particle in the nucleus of the atom,with no electrical charge v
  3. Solid nonmetals tend to be ___ and brittle.(O)
  4. Small positively charged particle that are in the nucleus of an atom v
  5. The____ of an element can be predicted from its location in the periodic table.(O)
  6. symbol A one or two letter representation of an element v
  7. At the ____ of the atom is a tiny,dense nucleus containing protons and neutrons.(O)
  8. An element that lacks most of the properties of a metal v
  9. metal An element in Group 1 of the periodic table v
  10. particle A fast moving electron that is given off as nuclear radiation v
Down
  1. Metals are ___ as alkaline, earth metals,transition metals.(O)
  2. rays Electromagnetic waves with the shortest wavelength and highest frequencies v
  3. Mendeleev noticed a _____ of properties in elements arranged by increasing atomic mass. (O)
  4. A tiny-negatively charged particle that moves around the outside of the nucleus of an atom v
  5. number The number of protons in the nucleus of an atom v
  6. The central core of an atom which contains protons and neutrons v
  7. The basic particle from which all elements are made v
  8. The physical properties of ___ includes luster,malleability,ductility,and conductivity.(O)
  9. conductivity The ability of an object to transfer heat v
  10. table The_____ includes each element's atomic number,symbol,name,and atomic mass.(O)
  11. life The time it takes for half of the atoms of a radioactive element to decay v
  12. During radioactive decay, the ___ of an atom changes. (O)
  13. mass The average mass of all the isotopes of an element v
  14. Atomic theory grew as a series of _____ models that developed from experimental evidence (O)
  15. The ___ containing nonmetals include the carbon,nitrogen,oxygen,halogen,noble gasses,and hydrogen families.(O)

25 Clues: Solid nonmetals tend to be ___ and brittle.(O) • metal An element in Group 1 of the periodic table v • The basic particle from which all elements are made v • number The number of protons in the nucleus of an atom v • conductivity The ability of an object to transfer heat v • symbol A one or two letter representation of an element v • ...

Reactivity 2024-01-25

Reactivity crossword puzzle
Across
  1. A compound containing hydrogen and carbon only.
  2. A reaction in which energy is transferred to the reactants from the surroundings. The temperature of the surroundings decreases.
  3. If a substance has lost oxygen then it has been reduced.
  4. Burning, usually in air. The reaction gives out energy, which is transferred to the surroundings by heating or light.
  5. A reaction in which an acid reacts with an alkali or a base to produce a salt and water.
  6. An explosive substance reacts very fast, releasing a lot of energy and gas.
  7. _______ series: A list of metals that shows them in order of reactivity with the most reactive metal at the top.
  8. A sub-atomic particle found outside the nucleus of an atom. It has an electrical charge of –1.
  9. A flammable substance catches fire easily.
  10. The central part of an atom, where protons and neutrons are found.
Down
  1. A reaction in which energy is transferred from the reactants to the surroundings. The temperature of the surroundings increases.
  2. _______ table, showing all the elements in order of atomic number.
  3. The amount of force pushing on a certain area. It is a way of saying how spread out a force is.
  4. A sub-atomic particle found in an atom’s nucleus. It has an electrical charge of +1.
  5. A sub-atomic particle found in an atom’s nucleus. It has no electrical charge.
  6. The smaller particles of which atoms are made (electrons, protons, neutrons).
  7. Reaction in which a substance gains oxygen.
  8. A horizontal row in the periodic table.
  9. _______reaction:A reaction in which one reactant is reduced and another is oxidised.
  10. A vertical column in the periodic table.
  11. An object is destroyed by collapsing in on itself.
  12. A change in which no new substances are formed (e.g. changes of state).
  13. A rock that contains enough of a certain mineral to make it worth mining.

23 Clues: A horizontal row in the periodic table. • A vertical column in the periodic table. • A flammable substance catches fire easily. • Reaction in which a substance gains oxygen. • A compound containing hydrogen and carbon only. • An object is destroyed by collapsing in on itself. • If a substance has lost oxygen then it has been reduced. • ...

6CHEM Unit 2 Vocab Practice 2024-11-22

6CHEM Unit 2 Vocab Practice crossword puzzle
Across
  1. transition metal, expected charge of 2+, 4 electron shells
  2. particle with no charge and same mass to a proton; found in the nucleus
  3. atom or group of atoms that has a positive or negative charge
  4. rare earth metals
  5. the lonely element
  6. positively charge particle with a mass of 1 amu
  7. 4 valence electrons and 3 electron shells
  8. 5 valence electrons and 4 electron shells
  9. atoms usually want 8 valence electrons to be stable
  10. area around the nucleus of the atom where electrons are most likely found
  11. 1 valence electron and 2 electron shells
  12. transition metal, expected charge of 2+, 5 electron shells
  13. 2 core electrons, 8 valence electrons, charge of 2-
  14. measure of electric charge (positive or negative) of an atom or molecule
  15. less soft and less reactive than group 1 metals
  16. metals in the middle of the periodic table
  17. particles smaller than an atom
  18. group 1, very reactive, soft, silver, shiny metals
Down
  1. transition metal, expected charge of 1+
  2. atomic mass of 247
  3. radioactive metals
  4. elements that are dull (not shiny) and poor conductors of heat and energy
  5. electrons in the outermost energy level
  6. contains nonmetals, extremely reactive and poor conductors
  7. atomic number of 92
  8. malleable and ductile elements, usually solid at R.T.
  9. vertical column on the periodic table
  10. least reactive elements (inert)
  11. center of an atom
  12. #p + #n = ___
  13. horizontal row of elements in the periodic table
  14. number of energy levels in an atom that matches the period or row of an element
  15. elements that separate metals and nonmetals
  16. atoms of the same element with a different number of neutrons/atomic masses
  17. positively charge ion
  18. average mass of all isotopes of an element
  19. the number of protons in an atom
  20. negatively charge particle with no mass
  21. negatively charge ion

39 Clues: #p + #n = ___ • rare earth metals • center of an atom • atomic mass of 247 • radioactive metals • the lonely element • atomic number of 92 • positively charge ion • negatively charge ion • particles smaller than an atom • least reactive elements (inert) • the number of protons in an atom • vertical column on the periodic table • transition metal, expected charge of 1+ • ...

General Chemistry 2020-05-25

General Chemistry crossword puzzle
Across
  1. Phase change that involves the conversion from solid to liquid
  2. the fundamental unit of length in the metric system equal to 100 centimeters or approximately 39.37 inches.
  3. mixture Mixture whose a composition varies from position to position within a sample.
  4. Group 7A elements
  5. a metric unit of length equal to one hundredth of a meter.
  6. Process in which the solid particles are filtered to allow the liquid or filtrate to pass through the filter and be collected as residue
  7. chemistry it is a branch of chemistry that studies and uses instruments and methods used to separate identify and quantify matter.
  8. inner transition elements located in the first row of the f block in the periodic table
  9. Formed when atom loses or gains electron
  10. a substance that flows freely but is of constant volume having a consistency like that of water or oil.
  11. movement of one fluid through another.
  12. mixture Called as solution a mixture with uniform composition.
  13. Positively charged subatomic particle of an atom
  14. Ratio of the mass of an object to the volume occupied by that object.
  15. Uncharged particle found within the atomic nuclei
  16. Element that appears at the far right side of the periodic table
  17. figures The digits in any measurement that are known with certainty plus one digit which is uncertain
  18. the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact combine and change; and the use of these processes to form new substances.
  19. Separates components of mixture at different boiling points.
  20. Composed of two or more substances combined physically in variable proportions
  21. it is a branch of chemistry that studies the chemical processes within and relating to living organisms. Biochemical processes give rise to the complexity of life.
Down
  1. The amount of space occupied by a substance
  2. a substance or matter in a state in which it will expand freely to fill the whole of a container having no fixed shape and no fixed volume.
  3. rule states that atoms other than hydrogen tend to form bonds until surrounded by eight valence electrons
  4. Substance consisting of only one kind of atom
  5. separation The separation of elemental metals from the mixtures
  6. phase change in which liquid is converted to gas
  7. Elements at the left side and in the center of the periodic table
  8. Organic compound with carbon and oxygen only
  9. compound Compound that consists of two charged ions
  10. Elements found in the zigzag order in the periodic table
  11. a substance or object that is solid rather than liquid or fluid
  12. the measurement or extent of something from end to end.
  13. physical property physical property that does not depend on the size or amount of the sample
  14. number The sum of the number of protons and neutrons in its nucleus
  15. Phase change in which liquid is converted to solid
  16. Horizontal row in the periodic table
  17. a period of time equal to sixty seconds or a sixtieth of an hour.
  18. Chemistry it is a branch of chemistry that deals with synthesis and behavior of inorganic and organometallic compounds.
  19. the quality, condition, or fact of being exact and accurate.
  20. chemistry the branch of chemistry concerned with the application of the techniques and theories of physics to the study of chemical systems.
  21. mass Indicates that one mole of an element has a mass in grams numerically equal to its atomic mass units
  22. gas insert gas located at the rightmost side of the periodic table
  23. chemistry it is a branch of chemistry that studies the structure properties and reactions of organic compounds which contain carbon in covalent bonding. Study of structure determines their chemical composition and formula.
  24. the size length or amount of something as established by measuring.
  25. bond Formed by losing and gaining of electrons between metal and nonmetal
  26. The quantity of matter in the body
  27. Anything that has mass and occupies space
  28. a metric unit of capacity formerly defined as the volume of one kilogram of water under standard conditions now equal to 1 000 cubic centimeters
  29. level Specific energy value of electrons for an atom
  30. Negatively charged subatomic particle of an atom

51 Clues: Group 7A elements • The quantity of matter in the body • Horizontal row in the periodic table • movement of one fluid through another. • Formed when atom loses or gains electron • Anything that has mass and occupies space • The amount of space occupied by a substance • Organic compound with carbon and oxygen only • Substance consisting of only one kind of atom • ...

General Chemistry 2020-05-25

General Chemistry crossword puzzle
Across
  1. The separation of elemental metals from the mixtures
  2. Phase change that involves the conversion from solid to liquid
  3. Horizontal row in the periodic table
  4. Formed by losing and gaining of electrons between metal and nonmetal
  5. it is a branch of chemistry that deals with synthesis and behavior of inorganic and organometallic compounds.
  6. The amount of space occupied by a substance
  7. Specific energy value of electrons for an atom
  8. The quantity of matter in the body
  9. insert gas located at the rightmost side of the periodic table
  10. Process in which the solid particles are filtered to allow the liquid or filtrate to pass through the filter and be collected as residue
  11. it is a branch of chemistry that studies the chemical processes within and relating to living organisms. Biochemical processes give rise to the complexity of life.
  12. Formed when atom loses or gains electron
  13. it is a branch of chemistry that studies the structure properties and reactions of organic compounds which contain carbon in covalent bonding. Study of structure determines their chemical composition and formula.
  14. the fundamental unit of length in the metric system equal to 100 centimeters or approximately 39.37 inches.
  15. the size length or amount of something as established by measuring.
  16. a period of time equal to sixty seconds or a sixtieth of an hour.
  17. the branch of chemistry concerned with the application of the techniques and theories of physics to the study of chemical systems.
  18. Mixture whose a composition varies from position to position within a sample.
  19. Positively charged subatomic particle of an atom
  20. it is a branch of chemistry that studies and uses instruments and methods used to separate identify and quantify matter.
  21. Called as solution a mixture with uniform composition.
  22. Anything that has mass and occupies space
  23. states that atoms other than hydrogen tend to form bonds until surrounded by eight valence electrons
  24. Separates components of mixture at different boiling points.
Down
  1. Elements at the left side and in the center of the periodic table
  2. The digits in any measurement that are known with certainty plus one digit which is uncertain
  3. The sum of the number of protons and neutrons in its nucleus
  4. a substance that flows freely but is of constant volume having a consistency like that of water or oil.
  5. the quality, condition, or fact of being exact and accurate.
  6. movement of one fluid through another.
  7. Phase change in which liquid is converted to solid
  8. the branch of science that deals with the identification of the substances of which matter is composed.
  9. phase change in which liquid is converted to gas
  10. Group 7A elements
  11. Elements found in the zigzag order in the periodic table
  12. Composed of two or more substances combined physically in variable proportions
  13. Negatively charged subatomic particle of an atom
  14. a metric unit of capacity formerly defined as the volume of one kilogram of water under standard conditions now equal to 1 000 cubic centimeters
  15. a metric unit of length equal to one hundredth of a meter.
  16. the quality or state of being correct or precise.
  17. Ratio of the mass of an object to the volume occupied by that object.
  18. a substance or matter in a state in which it will expand freely to fill the whole of a container having no fixed shape and no fixed volume.
  19. a substance or object that is solid rather than liquid or fluid
  20. Indicates that one mole of an element has a mass in grams numerically equal to its atomic mass units
  21. inner transition elements located in the first row of the f block in the periodic table
  22. Compound that consists of two charged ions
  23. Organic compound with carbon and oxygen only
  24. Element that appears at the far right side of the periodic table
  25. Substance consisting of only one kind of atom
  26. the measurement or extent of something from end to end.
  27. Uncharged particle found within the atomic nuclei

51 Clues: Group 7A elements • The quantity of matter in the body • Horizontal row in the periodic table • movement of one fluid through another. • Formed when atom loses or gains electron • Anything that has mass and occupies space • Compound that consists of two charged ions • The amount of space occupied by a substance • Organic compound with carbon and oxygen only • ...

General Chemistry 2020-05-25

General Chemistry crossword puzzle
Across
  1. mixture: Mixture whose a composition varies from position to position within a sample.
  2. chemistry: the branch of chemistry concerned with the application of the techniques and theories of physics to the study of chemical systems.
  3. Substance consisting of only one kind of atom
  4. Phase change in which liquid is converted to solid
  5. it is a branch of chemistry that studies the chemical processes within and relating to living organisms. Biochemical processes give rise to the complexity of life.
  6. Elements found in the zigzag order in the periodic table
  7. chemistry: it is a branch of chemistry that studies and uses instruments and methods used to separate: identify: and quantify matter.
  8. a metric unit of length: equal to one hundredth of a meter.
  9. the measurement or extent of something from end to end.
  10. Separates components of mixture at different boiling points.
  11. physical property: physical property that does not depend on the size or amount of the sample
  12. movement of one fluid through another.
  13. Horizontal row in the periodic table
  14. mass: Indicates that one mole of an element has a mass in grams numerically equal to its atomic mass units
  15. chemistry: it is a branch of chemistry that studies the structure: properties and reactions of organic compounds: which contain carbon in covalent bonding. Study of structure determines their chemical composition and formula.
  16. Ratio of the mass of an object to the volume occupied by that object.
  17. inner transition elements located in the first row of the f:block in the periodic table
  18. gas: insert gas located at the rightmost side of the periodic table
  19. bond: Formed by losing and gaining of electrons between metal and nonmetal
  20. Organic compound with carbon and oxygen only
  21. a substance or matter in a state in which it will expand freely to fill the whole of a container: having no fixed shape and no fixed volume.
Down
  1. Positively:charged subatomic particle of an atom
  2. Element that appears at the far right side of the periodic table
  3. the fundamental unit of length in the metric system: equal to 100 centimeters or approximately 39.37 inches.
  4. a substance that flows freely but is of constant volume: having a consistency like that of water or oil.
  5. the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact: combine: and change; and the use of these processes to form new substances.
  6. mixture: Called as solution: a mixture with uniform composition.
  7. a period of time equal to sixty seconds or a sixtieth of an hour.
  8. a metric unit of capacity: formerly defined as the volume of one kilogram of water under standard conditions: now equal to 1:000 cubic centimeters
  9. Uncharged particle found within the atomic nuclei
  10. compound: Compound that consists of two charged ions
  11. Negatively:charged subatomic particle of an atom
  12. the closeness of a single measurement to its true value
  13. figures: The digits in any measurement that are known with certainty plus one digit which is uncertain
  14. Anything that has mass and occupies space
  15. Phase change that involves the conversion from solid to liquid
  16. Elements at the left side and in the center of the periodic table
  17. the size: length: or amount of something: as established by measuring.
  18. separation: The separation of elemental metals from the mixtures
  19. rule: states that atoms other than hydrogen tend to form bonds until surrounded by eight valence electrons
  20. Chemistry: it is a branch of chemistry that deals with synthesis and behavior of inorganic and organometallic compounds.
  21. Process in which the solid particles are filtered to allow the liquid or filtrate to pass through the filter: and be collected as residue
  22. The quantity of matter in the body
  23. phase change in which liquid is converted to gas
  24. a substance or object that is solid rather than liquid or fluid
  25. level: Specific energy value of electrons for an atom
  26. Composed of two or more substances: combined physically in variable proportions
  27. Group 7A elements
  28. Formed when atom loses or gains electron
  29. number: The sum of the number of protons and neutrons in its nucleus
  30. The amount of space occupied by a substance

51 Clues: Group 7A elements • The quantity of matter in the body • Horizontal row in the periodic table • movement of one fluid through another. • Formed when atom loses or gains electron • Anything that has mass and occupies space • The amount of space occupied by a substance • Organic compound with carbon and oxygen only • Substance consisting of only one kind of atom • ...

General Chemistry 2024-05-09

General Chemistry crossword puzzle
Across
  1. Negatively charged subatomic particle of an atom
  2. table metals: Elements at the left side and in the center of the periodic table.
  3. The separation of elemental metals from the
  4. mixture: Called as solution: a mixture with uniform composition.
  5. a metric unit of length: equal to one hundredth of a meter.
  6. chemistry: the branch of chemistry concerned with the application of the techniques and theories of physics to the study of chemical systems.
  7. metalloids: Elements found in the zigzag order in the
  8. level: Specific energy value of electrons for an atom
  9. Phase change in which liquid is converted to solid
  10. Separates components of mixture at different boiling points.
  11. ion: Formed when atom loses or gains electron
  12. gas: insert gas located at the rightmost side of
  13. movement of one fluid through another.
  14. periodic table nonmetal: Element that appears at the far right side of the periodic table.
  15. or fluid liquid: a substance that flows freely but
  16. chemistry: it is a branch of chemistry that
  17. Uncharged particle found within the atomic nuclei.
  18. bond: Formed by losing and gaining of electrons between metal and nonmetal
  19. the measurement or extent of something from end to end.
  20. phase change in which liquid is converted to gas
  21. combine: and change; and the use of these processes to form new substances.
  22. Composed of two or more substances: combined physically in variable proportions
Down
  1. Phase change that involves the conversion from solid to
  2. Group 7A elements.
  3. mass: Indicates that one mole of an element has a mass in grams numerically equal to its atomic mass units
  4. the size: length: or amount of something: as established by measuring.
  5. mass:The quantity of matter in the body mass.
  6. the closeness of a single measurement to its true value.
  7. the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they
  8. Positively:charged subatomic particle of an atom significant figures: The digits in any measurement that are known with certainty plus one digit which is uncertain
  9. Ratio of the mass of an object to the volume occupied by that object.
  10. it is a branch of chemistry that studies the chemical processes within and relating to living organisms. Biochemical processes give rise to the complexity of life.
  11. Process in which the solid particles are filtered to allow the liquid or filtrate to pass through the filter: and be collected as residue.
  12. the fundamental unit of length in the metric system equal to 100 centimeters or approximately 39.37 inches.
  13. Organic compound with carbon and oxygen only
  14. a metric unit of capacity: formerly defined as the volume of one kilogram of water under standard conditions: now equal to 1:000 cubic centimeters
  15. compound: Compound that consists of two charged
  16. chemistry: it is a branch of chemistry that studies and uses instruments and methods used to separate: identify: and quantify matter.
  17. Chemistry: it is a branch of chemistry that deals with synthesis and behavior of inorganic and organometallic compounds.
  18. the structure: properties and reactions of organic compounds: which contain carbon in covalent bonding. Study of structure determines their chemical composition and formula.
  19. The amount of space occupied by a substance
  20. a period of time equal to sixty seconds or a sixtieth of an hour.
  21. a substance or object that is solid rather than
  22. Substance consisting of only one kind of atom
  23. a substance or matter in a state in which it will expand freely to fill the whole of a container: having no fixed shape and no fixed volume.
  24. rule: states that atoms other than hydrogen tend to form bonds until surrounded by eight valence electrons.
  25. physical property: physical property that does not depend on the size or amount of the sample.
  26. mixture: Mixture whose a composition varies from position to position within a sample.
  27. Horizontal row in the periodic table
  28. inner transition elements located in the first row of the f block in the periodic table magnetic.
  29. of constant volume: having a consistency like that of water or oil.
  30. The sum of the number of protons and neutrons in its nucleus matter: Anything that has mass and occupies space

52 Clues: Group 7A elements. • Horizontal row in the periodic table • movement of one fluid through another. • The separation of elemental metals from the • The amount of space occupied by a substance • chemistry: it is a branch of chemistry that • Organic compound with carbon and oxygen only • mass:The quantity of matter in the body mass. • ...

The Fundamentals Of Chemistry 2023-01-15

The Fundamentals Of Chemistry crossword puzzle
Across
  1. broken stone for use in making roads.
  2. a length or portion of time.
  3. metals, any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g., iron, manganese, chromium, and copper. Chemically they show variable valence and a strong tendency to form coordination compounds, and many of their compounds are colored.
  4. inert gases, noble gas. noun. no·​ble gas ˈnō-bəl- : any of a group of rare gases that include helium, neon, argon, krypton, xenon, and sometimes radon and that exhibit great stability and extremely low reaction rates.
  5. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
  6. an element (e.g. arsenic, antimony, or tin) whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
  7. atomic mass unit
  8. an element or substance that is not a metal.
  9. decay, Radioactive decay is the process in which a radioactive atom spontaneously gives off radiation in the form of energy or particles to reach a more stable state. It is important to distinguish between radioactive material and the radiation it gives off.
  10. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  11. any of the series of fifteen (15) metallic elements from lanthanum to lutetium in the periodic table.
  12. put together or place in a group or groups.
Down
  1. the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
  2. ion, An atomic or molecular system having an excess of negative charge. Negative ions, also called anions, are formed in attachment processes in which an additional electron is captured by an atom, molecule, or cluster. They can also be formed when a molecule or cluster dissociates.
  3. ion, Positive ions are formed by atoms or molecules suffering an inelastic collision with an energetic electron in which an electron is lost from the atom or molecule (electron impact ionization). The degree of ionization of the plasma depends strongly on the electron density and energy distribution in the gas.
  4. denoting lamps and radiant heat sources using a filament surrounded by the vapor of iodine or another halogen.
  5. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
  6. cloud, the system of electrons surrounding the nucleus of an atom.
  7. number, the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  8. any of the series of fifteen metallic elements from actinium (atomic number 89) to lawrencium (atomic number 103) in the periodic table. They are all radioactive, the heavier members being extremely unstable and not of natural occurrence.
  9. metals, alkali metal, any of the six chemical elements that make up Group 1 (Ia) of the periodic table—namely, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). The alkali metals are so called because reaction with water forms alkalies (i.e., strong bases capable of neutralizing acids).
  10. the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
  11. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
  12. metals, any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying Group IA (1) of the periodic table. They are very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.
  13. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

25 Clues: atomic mass unit • a length or portion of time. • broken stone for use in making roads. • put together or place in a group or groups. • an element or substance that is not a metal. • cloud, the system of electrons surrounding the nucleus of an atom. • an atom or molecule with a net electric charge due to the loss or gain of one or more electrons. • ...

Chemistry crossword 2021-08-16

Chemistry crossword crossword puzzle
Across
  1. High speed electron ejected out of nucleus when a neutron gains a positive or negative charge
  2. a reaction that occours to make a radioactive element stable
  3. The study of the properties characteristics and reactions of matter
  4. an atom that has gained or lost an electron
  5. the number of protons/electrons in an atom
  6. splitting of heavier atoms into lighter ones
Down
  1. helium nucleus released as a product has 4 neutrons and 2 electrons/protons
  2. +1 charge
  3. High speed radiation that comes out of beta or
  4. -1 charge very light part of an atom
  5. what is found on the periodic table
  6. no charge and found in the nucleus of an atom
  7. splitting of heavier atoms into lighter ones
  8. what an element on average weighs represented on the periodic table on the bottom of an element
  9. an atom with a change in nuetrons

15 Clues: +1 charge • an atom with a change in nuetrons • what is found on the periodic table • -1 charge very light part of an atom • the number of protons/electrons in an atom • an atom that has gained or lost an electron • splitting of heavier atoms into lighter ones • splitting of heavier atoms into lighter ones • no charge and found in the nucleus of an atom • ...

Chemistry Crossword 2017-11-09

Chemistry Crossword crossword puzzle
Across
  1. A substance that can't be broken down by chemical changed or or broken down; composed of atoms
  2. The basic unit of an element
  3. Determined by valence electrons
  4. A subatomic particle with a negative charge
  5. The group of non-metal elements that do not react with other elements
  6. A subatomic particle with a neutral charge
  7. A subatomic particle with a negative charge
  8. One or more letters given to identify an element
  9. The rows in a periodic table that organize elements based on their energy levels
  10. The columns in a periodic table that organize elements based on their valence electrons
  11. A particle that is formed when an element loses or gains an extra proton or electron
Down
  1. The electrons located on the outer energy level
  2. When two atoms come together to form a molecule
  3. The center of an atom
  4. A subatomic particle with a positive charge

15 Clues: The center of an atom • The basic unit of an element • Determined by valence electrons • A subatomic particle with a neutral charge • A subatomic particle with a negative charge • A subatomic particle with a negative charge • A subatomic particle with a positive charge • The electrons located on the outer energy level • When two atoms come together to form a molecule • ...

Nuclear Energy 2023-11-01

Nuclear Energy crossword puzzle
Across
  1. Can go through skin and aluminium but is stopped by lead
  2. Calculated by adding neutrons and protons
  3. When an atom has a different mass than whats on the periodic table
  4. Instability in a atom which makes it this
  5. 2 atom combine and release energy
  6. When something happens and causes another set of reactions to happen
  7. This determines its place on the periodic table, Calculated by the number of protons
  8. The Time point when a sample has gotten to half of its original amount
Down
  1. An atom splits and releases energy
  2. Is released during beta decay, Is one electron
  3. Releases during Alpha decay, Also known as a helium nucleus
  4. Determines what element it is
  5. the center of a atom and contains most mass in a atom
  6. Neutrally charged subatomic particle, Weighs 1 amu

14 Clues: Determines what element it is • 2 atom combine and release energy • An atom splits and releases energy • Calculated by adding neutrons and protons • Instability in a atom which makes it this • Is released during beta decay, Is one electron • Neutrally charged subatomic particle, Weighs 1 amu • the center of a atom and contains most mass in a atom • ...

Elements, Compounds, and Mixtures 2021-09-16

Elements, Compounds, and Mixtures crossword puzzle
Across
  1. a pure substance that can not be broken down into any other substances
  2. he started the first Periodic Table
  3. when one or more elements have been chemically combined through a chemical reaction to form a new substance
  4. a combination of many different elements, but they are not chemically bonded and can be separated
Down
  1. anything that has mass and takes up space
  2. Table: it is a display of the elements
  3. the incredibly, small building blocks of matter
  4. the element of sodium
  5. compound for water
  6. the element for chloride

10 Clues: compound for water • the element of sodium • the element for chloride • he started the first Periodic Table • Table: it is a display of the elements • anything that has mass and takes up space • the incredibly, small building blocks of matter • a pure substance that can not be broken down into any other substances • ...

Periodic Table Crossword 2022-05-06

Periodic Table Crossword crossword puzzle
Across
  1. These metals have 1 outer electron and are highly reactive with non-metals. and are highly reactive with non-metals.
  2. the columns going up and down
  3. a large thing of elements.
  4. the rows going across
  5. Elements in family 18
  6. located on the left side of the periodic table.
Down
  1. These metals have 2 outer electrons and are so reactive that they are not found by themselves in nature.
  2. Nonmetals are located on the right side of the periodic table.
  3. ability to reflect light
  4. Elements in family 17.

10 Clues: the rows going across • Elements in family 18 • Elements in family 17. • ability to reflect light • a large thing of elements. • the columns going up and down • located on the left side of the periodic table. • Nonmetals are located on the right side of the periodic table. • ...

Chemical Bonds And Atomic Stucture 2018-09-11

Chemical Bonds And Atomic Stucture crossword puzzle
Across
  1. Negative charged particle that orbits the atom.
  2. Two atoms with different numbers of neutrons are called
  3. Highly reactive group of elements with water.
  4. Neutral charged particle in the nucleus.
  5. Is located on the bottom of the element on the periodic table
Down
  1. The attractive force that holds atoms or ions together.
  2. positive charged particle in the nucleus.
  3. How many orbital particles can be in the first orbital ring of an atom
  4. Is located on the top of the element on the periodic table
  5. An atom that carries an electrical charge is called an

10 Clues: Neutral charged particle in the nucleus. • positive charged particle in the nucleus. • Highly reactive group of elements with water. • Negative charged particle that orbits the atom. • An atom that carries an electrical charge is called an • The attractive force that holds atoms or ions together. • Two atoms with different numbers of neutrons are called • ...

Chemistry crossword 2018-11-13

Chemistry crossword crossword puzzle
Across
  1. chlorine
  2. combination of pure substances
  3. substance that reacts with another substances in a chemical reaction to create new substances with different properties
  4. shell orbit of electrons around the nucleus of an atom
  5. a chemical combination of two or more elements in a specific ratio
  6. table a table in which the elements are organized by their physical and chemical properties
  7. cloudy mixture in which tiny particles of one substance are held within another and the particles can be separated out
  8. neutral particle in the nucleus of an atom
  9. number number of protons in the nucleus of one atom of an element
  10. group 17 elements in the perodic table,the most reactive not metals
  11. metals group 1 elements in the peroidic table,not including hydrogeon the most reactive of the metals
Down
  1. a pure substance that cannot be broken down into other substances,made up of only one type of atom
  2. something that has mass and occupies space
  3. group of atoms joined by covalent bonds
  4. homogenous mixture mixture of two or more pure substances that looks like one substance
  5. reaction a reaction that takes place when to or more substances react to form a new substance
  6. change in the appearance or state of a substance that does not change the composition
  7. compound pure substance formed when non-metals combine
  8. positively charged particle in the nucleus of an atom
  9. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be seperatedout from other substances
  10. compound pure substance formed when at least one metal and one non metal combine
  11. compound that dissolves in water to form a solution with a ph lower than 7
  12. gases group 18 elements in the periodic table,the most stable and interactive elements

23 Clues: chlorine • combination of pure substances • group of atoms joined by covalent bonds • something that has mass and occupies space • neutral particle in the nucleus of an atom • positively charged particle in the nucleus of an atom • shell orbit of electrons around the nucleus of an atom • compound pure substance formed when non-metals combine • ...

Extra Credit Lucas 2024-02-26

Extra Credit Lucas crossword puzzle
Across
  1. Hydrogen
  2. different elements
  3. latin derived
  4. same element
  5. positive
  6. most common in the water
  7. Makes up everything
  8. shared electrons
  9. periodic table
  10. most common element
Down
  1. most common in the air
  2. right
  3. exponents opposite
  4. left
  5. Micky mouse
  6. 118 things on it
  7. compound for ocean
  8. protons and neutrons
  9. what we breathe
  10. I think I lost a blank, in fact i'm positive
  11. part of nucleus

21 Clues: left • right • Hydrogen • positive • Micky mouse • same element • latin derived • periodic table • what we breathe • part of nucleus • 118 things on it • shared electrons • exponents opposite • different elements • compound for ocean • Makes up everything • most common element • protons and neutrons • most common in the air • most common in the water • I think I lost a blank, in fact i'm positive

Unit 1 Vocabulary 2022-12-14

Unit 1 Vocabulary crossword puzzle
Across
  1. atoms of the same element that have the same atomic number but different atomic masses due to different numbers of neutrons
  2. vertical columns of elements in the periodic table, made of elements with similar physical properties
  3. a compound that produces hydrogen ions in solution
  4. the total number of protons and neutrons in the nucleus of an atom
  5. an element in group 8A of the periodic table, they ahave the s and p of the highest energy level filled
  6. one of the group B elements that the highest occupied s and nearest d sublevels contain electrons
  7. horizontal rows of elements in the periodic table
  8. the weighted average of the masses of isotopes of certain elements
  9. a negatively charged subatomic particle
  10. a positively charged subatomic particle
  11. one of a class of elements that are good conductors of heat and electric current, tend to be ductile, malleable and shiny
  12. an element that tends to be a poor conductor of heat and electric current, generally have properties opposite of metals
  13. a negatively charged ion
  14. a unit of mass equal to one-twelfth of the carbon-12 atom
Down
  1. a tightly bound group of atoms that behave as a unitand has a positive or negative charge
  2. a one or two letter symbol representation of an element
  3. the region of an atom that contains the protons and neutrons
  4. a postively charged ion
  5. an element that tends to have properties that are similar to metals and nonmetals
  6. a subatomic particle with no charge
  7. an expression that indicates the number and types of atoms present in the smallest representative unit of a substance
  8. the smallest particle of an element that retains its identity in a chemical reaction
  9. an atom or group of atoms that have a positive or negative charge
  10. the number of protons in the nucleus of an atom of an element

24 Clues: a postively charged ion • a negatively charged ion • a subatomic particle with no charge • a negatively charged subatomic particle • a positively charged subatomic particle • horizontal rows of elements in the periodic table • a compound that produces hydrogen ions in solution • a one or two letter symbol representation of an element • ...

Atomic Structure & Periodic Table Crossword 2023-06-09

Atomic Structure & Periodic Table Crossword crossword puzzle
Across
  1. The substance that 'does' the dissolving to form a solution
  2. Negatively charged subatomic particle
  3. Group 0 elements, generally unreactive and odourless
  4. The technique used to separate a soluble and insoluble substance
  5. Atom with the same number of protons but a different number of neutrons
  6. When setting up a chromatogram, you must always use a ...
  7. In paper chromatography the paper is considered the ... phase
  8. The technique used to separate a mixture based on boiling points
  9. Positively charged subatomic particle
  10. The substance that is collected after passing through filter paper
  11. Central part of an atom containing protons and neutrons
  12. Elements in the middle of the periodic table with varying properties. ... metals
  13. The substance that dissolves to form a solution
  14. clue: Electron in the outermost energy level of an atom can be the called the ... electron
  15. A substance has completely moved with the mobile phase. What is its RF value?
  16. Horizontal row in the periodic table
  17. Number of protons in an atom
  18. Metals Group 1 elements, highly reactive. ... metals
Down
  1. Tabular arrangement of elements based on atomic number and properties
  2. The equipment specifically during distillation
  3. The substance that is captured by the filter paper
  4. In paper chromatography the water is considered the ... phase
  5. A substance has a perfect affinity to the stationary phase. What is its RF value?
  6. This is needed to separate a solvent and from a solute
  7. Vertical column in the periodic table
  8. Combined mass of protons and neutrons in an atom
  9. The process a solute does, as the solvent is evaporated
  10. Neutrally charged subatomic particle
  11. Group 7 elements, highly reactive nonmetals
  12. The technique used to separate substances based on their solubility
  13. A mixture of a solute and solvent
  14. distance travelled by substance / distance moved by solvent front
  15. Smallest part of an atom that could still be recognised as a member of that element

33 Clues: Number of protons in an atom • A mixture of a solute and solvent • Neutrally charged subatomic particle • Horizontal row in the periodic table • Negatively charged subatomic particle • Vertical column in the periodic table • Positively charged subatomic particle • Group 7 elements, highly reactive nonmetals • The equipment specifically during distillation • ...

PS review crossword 2014-01-12

PS review crossword crossword puzzle
Across
  1. usually liquid or gas at room temp.
  2. The maximum number of __________ in the second energy level of an atom is 4.
  3. variable the measurable outcome of the experiment
  4. centimeters example of a derived unit of volume
  5. the process of changing one element to another through nuclear decay.
  6. Moving from left to right in a row of the periodic table, metallic properties _____.
  7. Usually solid at room temperature
  8. In SI units, temperature is measured on the ________ scale. Here, 0 degrees is the coldest possible temperature, absolute zero.
  9. These are negatively charged within an atom
  10. The nucleus of an atom has a __________ charge
  11. number The ___________ of an element is a number that tells how many protons it has.
Down
  1. variable plotted on the horizontal, or x-axis
  2. Arranged in a staircase design on the periodic table.
  3. chamber detects radiation by means of a supercooled gas.
  4. The vast majority of an atom’s mass is located in the
  5. Metals are good _________ of heat and electricity.
  6. factor a ratio that is equal to one and is used to change one unit to another.
  7. chamber detects radiation by means of a supeheated liquid.
  8. These have a charge of either +2/3 or -1/3
  9. These subatomic particles have no charge at all, only mass.
  10. when what the scientist expects changes how the results are viewed
  11. an experiment where information is purposely concealed from the test subject is called a ______ experiment
  12. One ________ and one electron are added to each element as you go across the periodic table.
  13. mass the amount of material required so that each fission reaction produces approximately one more fission reaction.
  14. SI unit of mass
  15. a measurement of the quantity of matter in an object. (and also the property of it having gravitational attraction).

26 Clues: SI unit of mass • Usually solid at room temperature • usually liquid or gas at room temp. • These have a charge of either +2/3 or -1/3 • These are negatively charged within an atom • variable plotted on the horizontal, or x-axis • The nucleus of an atom has a __________ charge • centimeters example of a derived unit of volume • ...

SCIENCE 2016-01-17

SCIENCE crossword puzzle
Across
  1. A species in danger of becoming extinct in the near future is referred to as a(an)_________species.
  2. The study of interactions between organisms and their environment is called_____
  3. What day is it when the sun is at its lowest elevation in the sky all year and we experience the shortest day of the year?
  4. Which area of Earth science includes the study of stars?
  5. Which body system pumps and transports the blood to all parts of the body as well as supply oxygen and remove waste products from body tissues?
  6. Which organelle contains nearly all of a eukaryotic cell's DNA?
  7. This is the structure in plant cells that captures the sun's energy and changes it into chemical energy.
  8. This structure, found in cells, assembles proteins.
Down
  1. If fish are caught faster than they can breed, what will happen to the population?
  2. In addition to food, what else does a mitochondrion need to release energy?
  3. ____are often slippery substances that are used for cleaning.
  4. What is the hormone responsible for causing sudden emotional changes and sexual feelings that occur in males during puberty?
  5. On the Periodic Table, elements that are in the same vertical column are considered to be in the same_____
  6. Which subatomic particle is NOT found in the nucleus of an atom?
  7. Which term refers to the number of protons in an atom and helps to place elements on the Periodic Table?
  8. The breaking down of rocks on the earth's surface is ____
  9. The longest phase of the cell cycle is______
  10. Which subatomic particle has a positive charge?
  11. Which of the following nutrients is used to build and repair cells?
  12. The outer layers of plants, fungi and some protist cells which support and protect the cell are called the _____
  13. On the Periodic Table, all elements that are in the same horizontal rows are considered to be in the same ____

21 Clues: The longest phase of the cell cycle is______ • Which subatomic particle has a positive charge? • This structure, found in cells, assembles proteins. • Which area of Earth science includes the study of stars? • The breaking down of rocks on the earth's surface is ____ • ____are often slippery substances that are used for cleaning. • ...

Chapter 10 Vocabulary 2016-01-10

Chapter 10 Vocabulary crossword puzzle
Across
  1. horizontal groups of elements in the periodic table
  2. within a sublevel, place one electron per orbital before pairing them (2W)
  3. a measurement of how fast a wave travels in space
  4. the lowest available level within an atom (2W)
  5. small measures of energy
  6. the number that indicates the shape of the orbital (4W)
  7. noble gas configuration (2W)
  8. a particle representing a quantum of light or other electromagnetic radiation
  9. a new branch of physics (2W)
  10. contains electrons in the orbitals (3W)
  11. the distance between consecutive peaks in a wave
  12. the last name of a French physicist who suggested that all objects have wave properties
Down
  1. principle that states that energy levels in atoms are written; n=1, n=2... (3W)
  2. also called families, vertical groups of elements in the periodic table
  3. the orbital arrangement of electrons in an atom (2W)
  4. a way of showing the arrangement of electrons in an atom (2W)
  5. two possible values for spin, +1/2 or -1/2 (3W)
  6. colored lines generated when light emitted by a gas is shown through a spectroscope (2W)
  7. one way energy travels through space (3W)
  8. an atomic orbital can hold a maximum of 2 electrons, which most have opposite (3W)
  9. the electrons in the outermost energy level of an atom (2W)
  10. electrons on the outermost electron shell (2W)
  11. electrons fill the lowest energy level first (2W)
  12. the B groups and group VIII (2W)
  13. an A group element (2W)
  14. a cloudlike region around the nucleus where electrons are located
  15. a measurement of the number of waves that pass a particular point per second
  16. the publisher of the periodic table
  17. the property of an electron that describes its appearance of spinning on an axis like a globe
  18. the number of electrons a p orbital can hold

30 Clues: an A group element (2W) • small measures of energy • noble gas configuration (2W) • a new branch of physics (2W) • the B groups and group VIII (2W) • the publisher of the periodic table • contains electrons in the orbitals (3W) • one way energy travels through space (3W) • the number of electrons a p orbital can hold • the lowest available level within an atom (2W) • ...

Chapter 10 Vocabulary 2016-01-10

Chapter 10 Vocabulary crossword puzzle
Across
  1. colored lines generated when light emitted by a gas is shown through a spectroscope (2W)
  2. the electrons in the outermost energy level of an atom (2W)
  3. noble gas configuration (2W)
  4. the last name of a French physicist who suggested that all objects have wave properties
  5. a way of showing the arrangement of electrons in an atom (2W)
  6. the property of an electron that describes its appearance of spinning on an axis like a globe
  7. contains electrons in the orbitals (3W)
  8. a cloudlike region around the nucleus where electrons are located
  9. the number that indicates the shape of the orbital (4W)
  10. within a sublevel, place one electron per orbital before pairing them (2W)
  11. a new branch of physics (2W)
  12. horizontal groups of elements in the periodic table
  13. the distance between consecutive peaks in a wave
  14. the number of electrons a p orbital can hold
  15. a particle representing a quantum of light or other electromagnetic radiation
  16. an A group element (2W)
Down
  1. the orbital arrangement of electrons in an atom (2W)
  2. electrons on the outermost electron shell (2W)
  3. one way energy travels through space (3W)
  4. two possible values for spin, +1/2 or -1/2 (3W)
  5. small measures of energy
  6. an atomic orbital can hold a maximum of 2 electrons, which most have opposite (3W)
  7. principle that states that energy levels in atoms are written; n=1, n=2... (3W)
  8. electrons fill the lowest energy level first (2W)
  9. the lowest available level within an atom (2W)
  10. the publisher of the periodic table
  11. the B groups and group VIII (2W)
  12. a measurement of the number of waves that pass a particular point per second
  13. also called families, vertical groups of elements in the periodic table
  14. a measurement of how fast a wave travels in space

30 Clues: an A group element (2W) • small measures of energy • noble gas configuration (2W) • a new branch of physics (2W) • the B groups and group VIII (2W) • the publisher of the periodic table • contains electrons in the orbitals (3W) • one way energy travels through space (3W) • the number of electrons a p orbital can hold • electrons on the outermost electron shell (2W) • ...

Chapter 10 Vocabulary 2016-01-10

Chapter 10 Vocabulary crossword puzzle
Across
  1. principle that states that energy levels in atoms are written; n=1, n=2... (3W)
  2. contains electrons in the orbitals (3W)
  3. electrons fill the lowest energy level first (2W)
  4. noble gas configuration (2W)
  5. the distance between consecutive peaks in a wave
  6. the publisher of the periodic table
  7. the last name of a French physicist who suggested that all objects have wave properties
  8. the number that indicates the shape of the orbital (4W)
  9. electrons on the outermost electron shell (2W)
  10. a cloudlike region around the nucleus where electrons are located
  11. a way of showing the arrangement of electrons in an atom (2W)
  12. a measurement of the number of waves that pass a particular point per second
  13. horizontal groups of elements in the periodic table
  14. a measurement of how fast a wave travels in space
  15. the electrons in the outermost energy level of an atom (2W)
Down
  1. the lowest available level within an atom (2W)
  2. one way energy travels through space (3W)
  3. the number of electrons a p orbital can hold
  4. a new branch of physics (2W)
  5. a particle representing a quantum of light or other electromagnetic radiation
  6. two possible values for spin, +1/2 or -1/2 (3W)
  7. also called families, vertical groups of elements in the periodic table
  8. an A group element (2W)
  9. colored lines generated when light emitted by a gas is shown through a spectroscope (2W)
  10. small measures of energy
  11. an atomic orbital can hold a maximum of 2 electrons, which most have opposite (3W)
  12. within a sublevel, place one electron per orbital before pairing them (2W)
  13. the B groups and group VIII (2W)
  14. the orbital arrangement of electrons in an atom (2W)
  15. the property of an electron that describes its appearance of spinning on an axis like a globe

30 Clues: an A group element (2W) • small measures of energy • a new branch of physics (2W) • noble gas configuration (2W) • the B groups and group VIII (2W) • the publisher of the periodic table • contains electrons in the orbitals (3W) • one way energy travels through space (3W) • the number of electrons a p orbital can hold • the lowest available level within an atom (2W) • ...

Chemistry Crossword 2015-11-17

Chemistry Crossword crossword puzzle
Across
  1. Description of a solid that can be stretched into a long wire
  2. substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
  3. Chemical combination of two or more elements in a specific ration
  4. chemical reaction that releases heat/energy
  5. description of a substance that can be pounded or rolled into sheets
  6. change in the appearance or state of a substance that does not change the composition
  7. neutral particle in the nucleus of an atom
  8. Mass of one atom of an element calculated from the total number of protons, neutrons, and electrons of the atom; measured in atomic mass units
  9. new substance produced in a chemical reaction between reactants
  10. pure substance formed when non-metals combine
  11. Group 1 Elements in the periodic table, not including hydrogen; the most reactive of the metals
Down
  1. pure substance that cannot be broken down into other substances
  2. combination of pure substances
  3. Slow chemical change that occurs when oxygen in the air reacts with a metal
  4. group 18 elements in the periodic table; the most stable and unreactive elements
  5. Stands for Atomic Mass Units
  6. A reaction that takes place when two or more substances react to form new substances
  7. Group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali earth metals
  8. Change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  9. positively charged particle in the nucleus of an atom
  10. Pure substance formed when at least one metal and one non-metal combine
  11. Number of protons in the nucleus of one atom of an element
  12. chemical reaction that absorbs heat/energy
  13. Ability of a substance to conduct electricity or heat
  14. Substance that helps a chemical reaction to proceed more quickly

25 Clues: Stands for Atomic Mass Units • combination of pure substances • chemical reaction that absorbs heat/energy • neutral particle in the nucleus of an atom • chemical reaction that releases heat/energy • pure substance formed when non-metals combine • positively charged particle in the nucleus of an atom • Ability of a substance to conduct electricity or heat • ...

Chemistry 2016-02-28

Chemistry crossword puzzle
Across
  1. _________is a temperature scale having an absolute zero below which temperatures do not exist.
  2. _________ reorganized the periodic table by atomic number.
  3. _____ law pressure and volume are inversely related.
  4. _________ reactions occur when a compound breaks up into the elements or in a few simpler compounds.
  5. ______ replacement reactions occur when one element replaces another in a compound.
  6. The ________ scale is based on 32 degrees for the freezing point of water and 212 degrees as the boiling point of water.
  7. As the ___________ of the gas and/or the temperature of the gas changes so does its behavior.
  8. _______ is a fluids resistance to flow.
  9. In _______ bonds atoms share valance electrons.
  10. ______ is a measure of the average amount of kinetic energy of particles in matter.
  11. _______ have an indefinite shape and a definite volume.
  12. _______ have a definite shape and a definite volume.
Down
  1. In general metals _____ electrons to form positive cations.
  2. __________ reactions occur when two substances combine and form a new compound.
  3. _________ composed the first list of all known elements.
  4. A(n) ________ bond is a chemical bond formed by the electrostatic attraction between positive and negative ions.
  5. _________ indicates the relative ability of an atom to attract electrons in a chemical bond.
  6. _________ reactions occur when a hydrocarbon reacts wit oxygen.
  7. _______ arranged the elements by atomic mass and by similar properties.
  8. in general non-metals _____ electrons to form negative anions.
  9. Eacn vertical column of the periodic table is called a(n) ________.
  10. The _______ scale is based on 0 degrees for the freezing point of water and 100 degrees as the boiling point.
  11. _____ stands for standard temperature and pressure.
  12. _____ reactions is the process by which atoms of one or more substances are rearranged to form different substances.
  13. _______ collisions are ones where no kinetic energy is lost.
  14. Each horizontal row of the periodic table is called a(n) ______.
  15. _______ does not have a definite shape or volume.

27 Clues: _______ is a fluids resistance to flow. • In _______ bonds atoms share valance electrons. • _______ does not have a definite shape or volume. • _____ stands for standard temperature and pressure. • _____ law pressure and volume are inversely related. • _______ have a definite shape and a definite volume. • _______ have an indefinite shape and a definite volume. • ...

Unit B Chemistry Crossword - Camille Lugtu 9A 2018-11-14

Unit B Chemistry Crossword - Camille Lugtu 9A crossword puzzle
Across
  1. positively charged particles
  2. most reactive non metals
  3. mass of one atom of an element
  4. invisible negatively charged particle that orbits the nucleus of an atom
  5. from the total number of protons,
  6. positively charged centre of an atom; contains protons and neutrons
  7. which are formed from two nonmetals
  8. least reactive substances
  9. when energy is absorbed into, especially during a chemical reaction
  10. group 1 metals in the periodic table, not including hydrogen;the most reactive of the metals
  11. that are made up for 2 or more substances
  12. the orbit of an electron around the nucleus of an atom
  13. and electrons of that atom; measured in
  14. shiny, malleable, ductile element that conducts electricity
  15. anything that has mass and occupies space
Down
  1. The non-metal in the periodic table with the symbol O
  2. also known as rusting, is caused when oxygen reacts with a metal
  3. measure of atomic mass; 1 amu is equal to 1/12th the mass of a carbon-12 atom
  4. second most reactive elements, group 2 of the periodic table
  5. when energy is given off from, especially from a chemical reaction
  6. substances that are made up of one type of matter and have a unique set of characteristics
  7. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  8. atom that has become electrically charged because it has lost or gained electrons; a positive ___ is an atom that has lost one or more electrons; a negative ___ is an atom that has gained one or more electrons
  9. which are formed from a nonmetal and a metal which balance out
  10. number of protons in the nucleus of one atom in an element
  11. dull, brittle insulators
  12. has the properties of metals and non metals
  13. neutral particles

28 Clues: neutral particles • most reactive non metals • dull, brittle insulators • least reactive substances • positively charged particles • mass of one atom of an element • from the total number of protons, • which are formed from two nonmetals • and electrons of that atom; measured in • that are made up for 2 or more substances • anything that has mass and occupies space • ...

Biology IGCSE (9-1) #2.0 2025-04-04

Biology IGCSE (9-1) #2.0 crossword puzzle
Across
  1. a chemical element, which is 18 percent of the body
  2. a chemical element, which is 65 percent of the body
  3. a type of polysaccharide, not to be confused with “glycerol”
  4. plural, this word is coupled with “fatty” to designate a component of lipids
  5. plural for molecules made up of small basic units called simple sugars
  6. an enclosure for a cell made of lipids
  7. a unit of storage made of lipids
  8. a biological molecule consisting of carbon, hydrogen and oxygen
  9. a chemical element in the body that begins with an “n”; is present in the lungs(from the periodic table)
  10. a basic unit that makes up a lipid (in addition to three fatty acids)
  11. a biological molecule consisting of carbon, oxygen, hydrogen, and nitrogen, and sometimes containing sulfur
  12. plural for molecules made up of one glycerol and three fatty acids
  13. “simple _________” are small basic units, which make up carbohydrates
  14. plural, types of lipids that are solids and are used as storage in the body
  15. a name for a simple sugar
  16. a chemical element in the body that begins with an “i”; is present in our blood (from the periodic table)
  17. a pair of glucose molecules together; a short carbohydrate
Down
  1. a biological molecule consisting of carbon, hydrogen, oxygen
  2. a type of polysaccharide
  3. a chemical element, which is 10 percent of the body
  4. some proteins can contain this element in addition to carbon, hydrogen, oxygen and nitrogen
  5. adjective in front of “acids”: basic units, three of which make up a lipid (in addition to one glycogen)
  6. a short carbohydrate
  7. plural, long chains of glucose molecules
  8. a type of lipid that is a liquid
  9. plural for molecules made up of long chains of amino acids
  10. the most prominent chemical __________ in the body are carbon, hydrogen and oxygen
  11. a chemical element in the body that begins with a “c”; makes up our bones (from the periodic table)

28 Clues: a short carbohydrate • a type of polysaccharide • a name for a simple sugar • a unit of storage made of lipids • a type of lipid that is a liquid • an enclosure for a cell made of lipids • plural, long chains of glucose molecules • a chemical element, which is 18 percent of the body • a chemical element, which is 65 percent of the body • ...

The Atom 2025-03-28

The Atom crossword puzzle
Across
  1. Particle in the nucleus with a positive electric charge.
  2. it is the same as the atomic number in a periodic table - only in a neurally charged element. It is located in the cloud "shells". It has negative charge -1. It weights nothing compared to neutrons/protons
  3. total number of protons in an atom. It indicates where the atom is located within the periodic table and also its properties.
  4. brittle, soft, dull, not solid in room temperature, poor conductor of heat/electricity
  5. houses the protons and neutrons. It is the centre of the atom and contains most of its mass.
  6. highly reactive, lustrous, reacts with water
Down
  1. It is the smallest particle of a matter that still holds the element's properties.
  2. particle in the nucleus with a neutral charge.
  3. the number underneath the atom symbol in the periodic table. It represents the weight of the atom. It is calculated by the total number of protons plus the total number of neutrons.
  4. blend/mixed of properties of metals and non-metals
  5. ductility, lusture, conductivity, hardness

11 Clues: ductility, lusture, conductivity, hardness • highly reactive, lustrous, reacts with water • particle in the nucleus with a neutral charge. • blend/mixed of properties of metals and non-metals • Particle in the nucleus with a positive electric charge. • It is the smallest particle of a matter that still holds the element's properties. • ...

Elements 2025-05-04

Elements crossword puzzle
Across
  1. Nonmetals are located on the right side of the periodic table. Nonmetals commonly form bonds with metals.
  2. they display properties of both metals and nonmetals. Metalloids can be found in 4 different families along the stair-step line on the periodic table. These elements are considered semi-conductors and often form weak bonds.
  3. The 7 horizontal (across) rows of elements in the periodic table One common characteristic is how many electron energy levels these atoms have. 1st row has 1 energy level. 2nd row has 2 energy levels.
Down
  1. The 18 vertical (up/down) columns of elements in the periodic table. One common characteristic is how these atoms form compounds since they all have the same number of outer electrons.
  2. Metals are located on the left side of the periodic table. Metals commonly form bonds with nonmetals to make compounds.
  3. Elements in family 17. These nonmetals have 7 outer electrons. The word halogen means “salt former.” They are very reactive elements.
  4. Elements in family 18. These nonmetals have full outer energy levels. These elements are very stable and do not naturally form compounds with other elements. These nonmetals are gases at room temperature.
  5. A combination of two or more materials that are NOT chemically combined. There are several different categories of mixtures. (solutions, colloids, suspensions)

8 Clues: Nonmetals are located on the right side of the periodic table. Nonmetals commonly form bonds with metals. • Metals are located on the left side of the periodic table. Metals commonly form bonds with nonmetals to make compounds. • ...

Electron Configurations 2025-06-01

Electron Configurations crossword puzzle
Across
  1. the element of the periodic table that has a 1s22s2sp2 configuration
  2. the element of the periodic table that has a [Ne]3s1 configuration
  3. positively charged particle found within an atom's nucleus
  4. negatively charged particle found within an atom's nucleus
  5. 3D potential location of an electron around a nucleus of an atom
  6. principle that states that no two electrons can be in the same place at the same time
  7. holds up to 14 electrons
  8. principle that states that electrons fill lower energy orbitals before filling higher energy orbitals
  9. holds up to ten electrons
Down
  1. neutrally charged particle found within an atom's nucleus
  2. holds up to six electrons
  3. holds up to two electrons
  4. rule that states that electrons will fill each suborbital individually before pairing up and filling the orbitals completely

13 Clues: holds up to 14 electrons • holds up to six electrons • holds up to two electrons • holds up to ten electrons • neutrally charged particle found within an atom's nucleus • positively charged particle found within an atom's nucleus • negatively charged particle found within an atom's nucleus • 3D potential location of an electron around a nucleus of an atom • ...

Metals, Nonmetals, Metalloids 2023-09-08

Metals, Nonmetals, Metalloids crossword puzzle
Across
  1. - metalloids and they display characteristics of both metals and nonmetals
  2. - lacking brightness
  3. - able to be drawn out into a thin wire
  4. - vertical columns on the Periodic Table
  5. – materials which can have the properties of both metals and nonmetals
  6. - a material that does not conduct heat or electrical current
  7. – materials which are typically dull, not conductors and brittle
  8. – the ability of a material to reflect light
Down
  1. – material which is typically solid, lustrous(shiny), a conductor of heat and electricity, and malleable
  2. – the ability of a material to be shaped, molded or hammered without breaking
  3. – the ability of a material to carry (transmit) heat or an electrical charge
  4. - likely to break, snap, or crack when subjected to pressure
  5. - horizontal rows on the Periodic Table
  6. - a pure substance composed of the same type of atom throughout

14 Clues: - lacking brightness • - able to be drawn out into a thin wire • - horizontal rows on the Periodic Table • - vertical columns on the Periodic Table • – the ability of a material to reflect light • - likely to break, snap, or crack when subjected to pressure • - a material that does not conduct heat or electrical current • ...

Chemistry of Matter 2022-10-04

Chemistry of Matter crossword puzzle
Across
  1. Atoms are different from one another because of the number of these
  2. A tool that can be used to separate magnetic substances from non-magnetic ones
  3. A substance that cannot be broken down into a simpler substance
  4. Anything that has mass and volume
  5. The number of GROUPS in the Periodic Table
Down
  1. when a gas turns to a liquid
  2. The number of protons is equal to the number of these
  3. Most elements in the Periodic Table are solids and these
  4. The smallest most basic unit of matter
  5. A group of atoms bonded together
  6. A change in matter that can be un-done

11 Clues: when a gas turns to a liquid • A group of atoms bonded together • Anything that has mass and volume • The smallest most basic unit of matter • A change in matter that can be un-done • The number of GROUPS in the Periodic Table • The number of protons is equal to the number of these • Most elements in the Periodic Table are solids and these • ...

elements 2023-05-04

elements crossword puzzle
Across
  1. are located on the right side of the periodic table
  2. A negatively charged particle
  3. A tool used by chemists to help arrange the elements based on certain characteristics they share
  4. The positively charged center of an atom that contains protons and neutrons
  5. are located on the left side of the periodic table
Down
  1. A positively charged particle
  2. The building blocks of matter
  3. is what forms when two or more atoms combine
  4. A neutrally charged particle
  5. Two or more different elements that combine by a chemical change and create something with NEW and different physical and chemical characteristics
  6. A combination of two or more materials that are NOT chemically combined

11 Clues: A neutrally charged particle • A positively charged particle • The building blocks of matter • A negatively charged particle • is what forms when two or more atoms combine • are located on the left side of the periodic table • are located on the right side of the periodic table • A combination of two or more materials that are NOT chemically combined • ...

Chemistry Crossword 2017-12-08

Chemistry Crossword crossword puzzle
Across
  1. Has a pH of 7, not acidic or basic
  2. A row of elements in the periodic table
  3. Elements found in the first column of the periodic table
  4. A chemical, present during the beginning of a chemical reaction that is used up doing the reaction
  5. A negatively charged ion
Down
  1. A pure substance, formed with 2 or more non-metals
  2. A pure substance that cannot be broken down
  3. This is used to compare the acidity of solutions
  4. An aqueous solution that turns red litmus blue
  5. An aqueous solution that neutralizes a base

10 Clues: A negatively charged ion • Has a pH of 7, not acidic or basic • A row of elements in the periodic table • A pure substance that cannot be broken down • An aqueous solution that neutralizes a base • An aqueous solution that turns red litmus blue • This is used to compare the acidity of solutions • A pure substance, formed with 2 or more non-metals • ...

Paris Presnell Chapter 9 Mr.Burkholder 2018-09-11

Paris Presnell Chapter 9 Mr.Burkholder crossword puzzle
Across
  1. what charge does a neutron give off
  2. what element is number 16 on the periodic table
  3. located in the outer most shell of an atom
  4. what charge does a proton give off
Down
  1. an atom or molecule with a net electric charge due to the loss or gain of an electron
  2. Which element has 1 electron, 1 proton, and 0 neutrons
  3. The number of protons
  4. what charge does an electron give off
  5. The number of protons and neutrons added together
  6. which element is number 29 on the periodic table

10 Clues: The number of protons • what charge does a proton give off • what charge does a neutron give off • what charge does an electron give off • located in the outer most shell of an atom • what element is number 16 on the periodic table • which element is number 29 on the periodic table • The number of protons and neutrons added together • ...

Crossword 2023-08-25

Crossword crossword puzzle
Across
  1. group eight elements are called ......... gases.
  2. the electrons move in different ............... around the nucleus.
  3. the first group in the periodic table is also known as .......... metals.
  4. carbon also forms a giant structure for a very soft material .............
  5. the forces between the molecules are called .............. forces.
  6. the electrons in the electronic structure are held in place by ................. forces.
Down
  1. giant covalent structures are called ............
  2. the ionic compound sodium chloride makes a giant structure known as ........
  3. group 7 in the periodic table is also known as ..........
  4. compounds made from ions form ......... lattices.

10 Clues: group eight elements are called ......... gases. • giant covalent structures are called ............ • compounds made from ions form ......... lattices. • group 7 in the periodic table is also known as .......... • the forces between the molecules are called .............. forces. • the electrons move in different ............... around the nucleus. • ...

Crossword 2023-08-25

Crossword crossword puzzle
Across
  1. giant covalent structures are called.........
  2. compounds made from ions from ......... lattices.
  3. the ionic compound sodium chloride makes a giant structure known as......
  4. the electrons move in different ............ around the nucleus.
  5. group 7 elements in the periodic table is also known as .........
Down
  1. the electrons in the electronic structure are held in place by ........... forces.
  2. the forces between the molecules are called........
  3. the first group in the periodic table is also known as .......... metals.
  4. group eight elements are called ........ gases.
  5. carbon also forms a giant structure for a very soft material........

10 Clues: giant covalent structures are called......... • group eight elements are called ........ gases. • compounds made from ions from ......... lattices. • the forces between the molecules are called........ • the electrons move in different ............ around the nucleus. • group 7 elements in the periodic table is also known as ......... • ...

PERIODICTY 2023-10-30

PERIODICTY crossword puzzle
Across
  1. how strongly an atom attracts an electron to its own nucleus
  2. amount of energy required to remove, AKA take, an electron from an atom
  3. as the # of protons increase the positive nuclear charge increases
  4. Mendeleev organized the first periodic table by
  5. Hybrid chemical and physical properties; semi-conductors
Down
  1. as the # of energy levels increase, it reduces the proton pull effect
  2. Pictoral description of the electrons in an atom
  3. the radius of an atom
  4. a set of numbers that describe the location of an electron
  5. Mosley organized the modern periodic table by

10 Clues: the radius of an atom • Mosley organized the modern periodic table by • Mendeleev organized the first periodic table by • Pictoral description of the electrons in an atom • Hybrid chemical and physical properties; semi-conductors • a set of numbers that describe the location of an electron • how strongly an atom attracts an electron to its own nucleus • ...

Properties of Matter 2025-01-14

Properties of Matter crossword puzzle
Across
  1. The center of an atom containing protons and neutrons.
  2. Characteristics used to identify elements.
  3. How readily an element combines with other substances.
  4. The smallest unit of matter, consisting of protons, neutrons, and electrons.
  5. A one- or two-letter abbreviation for an element.
Down
  1. The ability of a material to transfer heat or electricity.
  2. A pure substance that consists of only one type of atom.
  3. Vertical columns on the periodic table that share similar properties.
  4. Horizontal rows on the periodic table showing repeating patterns.
  5. Negatively charged particle found in energy levels around the nucleus.

10 Clues: Characteristics used to identify elements. • A one- or two-letter abbreviation for an element. • The center of an atom containing protons and neutrons. • How readily an element combines with other substances. • A pure substance that consists of only one type of atom. • The ability of a material to transfer heat or electricity. • ...

Chemical Reactions Vocabulary 2025-10-19

Chemical Reactions Vocabulary crossword puzzle
Across
  1. means staying the same
  2. a change that creates a new substance
  3. the substances created after a reaction occurs
  4. the type of a substance, shown on the Periodic Table
  5. the substances mixed before a reaction occurs
Down
  1. a type of chemical reaction that creates heat
  2. a change that does not change the type of matter, but does change its appearance
  3. the name for the letter(s) that represent an element on the Periodic Table
  4. a type of chemical reaction that feels cool
  5. chemical equations use this symbol instead of an equal sign

10 Clues: means staying the same • a change that creates a new substance • a type of chemical reaction that feels cool • a type of chemical reaction that creates heat • the substances mixed before a reaction occurs • the substances created after a reaction occurs • the type of a substance, shown on the Periodic Table • chemical equations use this symbol instead of an equal sign • ...

Matter Part 2 2013-11-11

Matter Part 2 crossword puzzle
Across
  1. the substance that is dissolved
  2. elements that are shiny and conduct heat and electricity
  3. area outside of the nucleus where the electrons are found
  4. elements that are in group 16; includes oxygen and sulfur
  5. elements that are dull and do not conduct heat and electricity
  6. elements that are part of the transition metals; many are radioactive
  7. the part of the Periodic Table that is arranged by increasing atomic number
  8. elements in groups 3-12, includes most of the well-known metals
  9. atoms with the same number of protons but different number of neutrons
  10. a substance that is physically combined
  11. the number of protons
  12. elements in group 2 that form useful compounds
  13. elements that are in group 15; includes nitrogen that makes up 80% of the air we breath
  14. elements that are in group 13; includes aluminum is the most abundant
  15. the ability of the solute to dissolve in a solvent at a certain temperature
  16. a mixture that appears to be a single substance
  17. the type of matter that is found on the Periodic Table
  18. neutral particles of an atom found in the nucleus
Down
  1. elements that are in group 18; unreactive nonmetals
  2. elements that are part of the transition metals; many are used to make steel
  3. elements that are in group 17; very reactive nonmetals
  4. elements that have properties of both metals and nonmetals
  5. the number of protons plus the number of neutrons
  6. elements and compounds
  7. the part of the Periodic Table that is arranged by similar properties
  8. elements in group 1 that are the most reactive
  9. charged particles of an atom found in the nucleus
  10. a mixture where the particles do not settle out
  11. negatively charged particles of an atom found in electron clouds
  12. a pure substance that is combined chemically
  13. a measure the amount of solute dissolved in solvent
  14. a word that means repeating
  15. elements that are in group 14; these form compounds that are necessary for living things
  16. a mixture where the particles are big enough to settle out
  17. element that does not belong to a group because its properties do not match
  18. the substance that does the dissolving
  19. the smallest unit of matter that makes up all matter

37 Clues: the number of protons • elements and compounds • a word that means repeating • the substance that is dissolved • the substance that does the dissolving • a substance that is physically combined • a pure substance that is combined chemically • elements in group 1 that are the most reactive • elements in group 2 that form useful compounds • ...

Science Crossword Puzzle 2023-08-31

Science Crossword Puzzle crossword puzzle
Across
  1. The ability of a material to conduct electricity of heat
  2. Elements with similar properties found on the left side of the staircase
  3. Formula A notation used by scientists to show the number of atoms in a molecule
Down
  1. Symbol One or two letters abbreviation from the element’s name
  2. The tendency of a substance to undergo chemical changes
  3. table A reference for associating the name and symbol of an element
  4. Elements with similar properties found on the right side of the staircase on the periodic table
  5. Elements with similar properties that create a staircase on the periodic table

8 Clues: The tendency of a substance to undergo chemical changes • The ability of a material to conduct electricity of heat • Symbol One or two letters abbreviation from the element’s name • table A reference for associating the name and symbol of an element • Elements with similar properties found on the left side of the staircase • ...

Crossword 2021-01-20

Crossword crossword puzzle
Across
  1. these elements react to form positive ions
  2. scientist who devised the modern periodic table
  3. elements with similar properties are arranged in these
  4. the discovery of these made it possible to explain why the order of elements based on atomic weights was not always correct
  5. these are non-metals with seven electrons in their outer shell
  6. a more reactive halogen can do this to a less reactive halogen from an aqueous solution of its salt
Down
  1. these were left by Mendeleev for undiscovered elements
  2. these occur down groups and depend on distinctive properties of elements
  3. the arrangement of these in its atoms determines an elements position in the table
  4. these metals are reactive as they have a single electron in their outer shell
  5. these gases are unreactive as they have a stable arrangement of electrons
  6. this number determines the order of elements in the periodic table

12 Clues: these elements react to form positive ions • scientist who devised the modern periodic table • these were left by Mendeleev for undiscovered elements • elements with similar properties are arranged in these • these are non-metals with seven electrons in their outer shell • this number determines the order of elements in the periodic table • ...

Periodic Table 2023-11-30

Periodic Table crossword puzzle
Across
  1. This form of classification is malleable
  2. Recognized atomic number is the basis of organization for the periodic table
Down
  1. The first person to create a periodic table arranged by increasing atomic mass
  2. Made a periodic table with 28 elements
  3. This classification contains properties of metals and nonmetals
  4. This form classification are brittle and break easily

6 Clues: Made a periodic table with 28 elements • This form of classification is malleable • This form classification are brittle and break easily • This classification contains properties of metals and nonmetals • Recognized atomic number is the basis of organization for the periodic table • The first person to create a periodic table arranged by increasing atomic mass

Elements 2023-02-24

Elements crossword puzzle
Across
  1. Breathe in Breathe out
  2. Orbits Atom
  3. Makes everything
  4. Aftermath
  5. Number at bottom of symbol
  6. What Happens before
  7. Center of an Atom
  8. Connection of Elements
Down
  1. H2O
  2. Holds Atoms Together
  3. Also In a Atom
  4. Elements Combined
  5. Title for elements
  6. Everything
  7. Half of what makes an Atom
  8. First element on the periodic table

16 Clues: H2O • Aftermath • Everything • Orbits Atom • Also In a Atom • Makes everything • Elements Combined • Center of an Atom • Title for elements • What Happens before • Holds Atoms Together • Breathe in Breathe out • Connection of Elements • Number at bottom of symbol • Half of what makes an Atom • First element on the periodic table

Chemistry Review 2024-09-12

Chemistry Review crossword puzzle
Across
  1. Elements are made up of these, you created a diagram for this
  2. Our security, the E in PEN
  3. Atomic number 11, was thrown into a lake and exploded in a video we watched
  4. What you're learning about now, the study of how things react and make new things
  5. When two elements combine together, they form this (ex. water)
  6. How "thick" something is
  7. These things are produced in a chemical reaction
  8. Atomic number 2, this makes your voice go really high and is found in balloons
  9. These things react in a chemical reaction
Down
  1. The best document ever, arranges the elements in order by how they react
  2. Atomic number 8, something we need to breathe every day
  3. The written form of a compound (ex. H2O)
  4. A horizontal row of the periodic table
  5. Your favorite teacher ever (duh!)
  6. One of the things invited to the party, the N in PEN
  7. The genius behind the periodic table
  8. What everything is made of (cannot be created or destroyed)
  9. One of the things invited to the party, the P in PEN

18 Clues: How "thick" something is • Our security, the E in PEN • Your favorite teacher ever (duh!) • The genius behind the periodic table • A horizontal row of the periodic table • The written form of a compound (ex. H2O) • These things react in a chemical reaction • These things are produced in a chemical reaction • One of the things invited to the party, the N in PEN • ...

periodic table 2020-12-17

periodic table crossword puzzle
Across
  1. it,s use on balloons to float
  2. Number 6 in the periodic table
  3. his symbol its Fi
  4. we use this element to make food tasty
Down
  1. we use this at home to paste objects
  2. Number 4 in the periodic table
  3. it glows

7 Clues: it glows • his symbol its Fi • it,s use on balloons to float • Number 6 in the periodic table • Number 4 in the periodic table • we use this at home to paste objects • we use this element to make food tasty

Chemistry crossword 2018-11-13

Chemistry crossword crossword puzzle
Across
  1. a chemical combination of two or more elements in a specific ratio
  2. change in the appearance or state of a substance that does not change the composition
  3. group 17 elements in the perodic table,the most reactive not metals
  4. gases group 18 elements in the periodic table,the most stable and interactive elements
  5. compound pure substance formed when non-metals combine
  6. substance that reacts with another substances in a chemical reaction to create new substances with different properties
  7. table a table in which the elements are organized by their physical and chemical properties
  8. something that has mass and occupies space
  9. metals group 1 elements in the peroidic table,not including hydrogeon the most reactive of the metals
  10. combination of pure substances
  11. compound that dissolves in water to form a solution with a ph lower than 7
  12. shell orbit of electrons around the nucleus of an atom
Down
  1. number number of protons in the nucleus of one atom of an element
  2. cloudy mixture in which tiny particles of one substance are held within another and the particles can be separated out
  3. compound pure substance formed when at least one metal and one non metal combine
  4. positively charged particle in the nucleus of an atom
  5. neutral particle in the nucleus of an atom
  6. reaction a reaction that takes place when to or more substances react to form a new substance
  7. chlorine
  8. group of atoms joined by covalent bonds
  9. homogenous mixture mixture of two or more pure substances that looks like one substance
  10. a pure substance that cannot be broken down into other substances,made up of only one type of atom
  11. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be seperatedout from other substances

23 Clues: chlorine • combination of pure substances • group of atoms joined by covalent bonds • neutral particle in the nucleus of an atom • something that has mass and occupies space • positively charged particle in the nucleus of an atom • compound pure substance formed when non-metals combine • shell orbit of electrons around the nucleus of an atom • ...