periodic table Crossword Puzzles

7S Chapter 8 Vocabulary 2026-03-02

7S Chapter 8 Vocabulary crossword puzzle
Across
  1. The ability of an object to transfer heat
  2. One of the elements in Groups 3-12 of the periodic table
  3. A horizontal row of elements in the periodic table
  4. An element that lacks most of the properties of a metal
  5. The ease and speed with which an element combines, or reacts, with other elements and compounds
  6. A one or two-letter representation of an element
  7. An arrangement of the elements showing the repeating pattern of their properties
  8. An element in Group 1 of the periodic table
  9. A substance that can conduct electric current under some conditions
  10. An element found in Group 17 of the periodic table
Down
  1. The way a mineral reflects light from its surface
  2. The ability of an object to carry an electric current
  3. An element in Group 2 of the periodic table
  4. An element in Group 18 of the periodic table
  5. Small, positively charged particles that are found in the nucleus of an atom
  6. A term used to describe a material that can be hammered or rolled into flat sheets
  7. A term used to describe a material that can be pulled in to a long wire
  8. A small particle in the nucleus of an atom with no electrical charge
  9. The average mass of all the isotopes of an element
  10. A class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity
  11. The number of protons in the nucleus of an atom
  12. An element that has some characteristics of both metals and nonmetals
  13. A tiny, negatively charged particle that moves around the outside of the nucleus of an atom
  14. Elements in the same vertical column of the periodic table; also called a family
  15. The central core of an atom which contains protons and neutrons

25 Clues: The ability of an object to transfer heat • An element in Group 2 of the periodic table • An element in Group 1 of the periodic table • An element in Group 18 of the periodic table • The number of protons in the nucleus of an atom • A one or two-letter representation of an element • The way a mineral reflects light from its surface • ...

7S Chapter 8 Vocabulary 2025-03-28

7S Chapter 8 Vocabulary crossword puzzle
Across
  1. A tiny, negatively charged particle that moves around the outside of the nucleus of an atom
  2. A term used to describe a material that can be pulled in to a long wire
  3. An element in Group 2 of the periodic table
  4. The ability of an object to transfer heat
  5. An element in Group 18 of the periodic table
  6. One of the elements in Groups 3-12 of the periodic table
  7. An element that lacks most of the properties of a metal
  8. An element that has some characteristics of both metals and nonmetals
  9. A small particle in the nucleus of an atom with no electrical charge
  10. A one or two-letter representation of an element
  11. The way a mineral reflects light from its surface
  12. Elements in the same vertical column of the periodic table; also called a family
Down
  1. Small, positively charged particles that are found in the nucleus of an atom
  2. The ease and speed with which an element combines, or reacts, with other elements and compounds
  3. A class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity
  4. The ability of an object to carry an electric current
  5. A term used to describe a material that can be hammered or rolled into flat sheets
  6. An element found in Group 17 of the periodic table
  7. A horizontal row of elements in the periodic table
  8. A substance that can conduct electric current under some conditions
  9. The number of protons in the nucleus of an atom
  10. The central core of an atom which contains protons and neutrons
  11. The average mass of all the isotopes of an element
  12. An element in Group 1 of the periodic table
  13. An arrangement of the elements showing the repeating pattern of their properties

25 Clues: The ability of an object to transfer heat • An element in Group 2 of the periodic table • An element in Group 1 of the periodic table • An element in Group 18 of the periodic table • The number of protons in the nucleus of an atom • A one or two-letter representation of an element • The way a mineral reflects light from its surface • ...

Properties of Atoms & Molecules Unit 2 Vocabulary Review 2022-10-29

Properties of Atoms & Molecules Unit 2 Vocabulary Review crossword puzzle
Across
  1. elements in column VIIIA, non-reactive elements
  2. row of the periodic table
  3. adding of oxygen to a molecule
  4. non-reactive
  5. addition of hydrogen atoms to a molecule
  6. those to the right of the transition metals, between transition metals and metalloids
  7. easily combines chemically with other elements
  8. top four elements in column VIIA on the periodic table
  9. those that do not easily react with other metals
  10. able to be drawn into a wire
  11. recycling of carbon for reuse by plants and animals
  12. elements on the periodic table between the metals and the non-metals
Down
  1. able to be hammered into a shape
  2. column of the periodic table
  3. another name for metalloid
  4. removal of oxygen from a molecule
  5. removal of hydrogen atoms from a molecule
  6. list of metals from most to least reactive
  7. elements in the center columns, labeled with the letter B

19 Clues: non-reactive • row of the periodic table • another name for metalloid • column of the periodic table • able to be drawn into a wire • adding of oxygen to a molecule • able to be hammered into a shape • removal of oxygen from a molecule • addition of hydrogen atoms to a molecule • removal of hydrogen atoms from a molecule • list of metals from most to least reactive • ...

Ch 5 Vocab 2024-03-20

Ch 5 Vocab crossword puzzle
Across
  1. elements with properties that fall between those of metals and nonmetals
  2. table an arrangement of elements in columns, based on a set of properties that repeat from row to row
  3. electron an electron that is in the highest occupied energy level of an atom
  4. a column of elements in a periodic table
  5. metals metals that form a bridge between elements on the left and right sides of the periodic table Nonmetals - elements that are poor conductors of heat and electric current
  6. mass unit (amu) one twelfth the mass of a carbon-12 atom
  7. gases the elements in group 8A of the periodic table
Down
  1. earth metals the elements in group 2A of the periodic table
  2. metals the elements in group 1A of the periodic table, not including hydrogen
  3. law the pattern of repeating properties displayed by elements in the periodic table
  4. a row in a periodic table of elements
  5. the elements in group 7A of the periodic table
  6. elements that are good conductors of heat and electric current

13 Clues: a row in a periodic table of elements • a column of elements in a periodic table • the elements in group 7A of the periodic table • gases the elements in group 8A of the periodic table • mass unit (amu) one twelfth the mass of a carbon-12 atom • earth metals the elements in group 2A of the periodic table • ...

Chemistry Vocabulary Review 2017-01-09

Chemistry Vocabulary Review crossword puzzle
Across
  1. block or area of the periodic table that represents those elements with their last electron in an 'f' orbital
  2. dense center of the atom where 'all' mass is located
  3. physical combination of matter, can be homogeneous or heterogeneous
  4. atoms of the same element with different numbers of neutrons and masses
  5. name for a row on the periodic table
  6. property that can be seen when a substance undergoes a chemical change (ex - flammability, rustability)
  7. elements in main group 2, they have 2 valence electrons and are very reactive
  8. how close a measurement is to the true value (how 'right' or correct your answer is)
  9. elements found in a stairstep pattern in the 'p' block of the period table, they have properties of both metals and nonmetals
  10. positive subatomic particle that determines the type of atom
  11. elemenst found in the 'f' block of the periodic table, they are radioactive or man-made substances
  12. name for a positive ion that has lost electrons
  13. state of matter with variable volume and variable shape
  14. negative subatomic particle located in orbitals around the nucleus
  15. elements in main group 1, they have 1 valence electron and are very very reactive
  16. the number of protons and neutrons in an atom
  17. anything with mass that takes up space
  18. electrons located in the outer energy level, involved in bonding and gives an atom its chemical properties
  19. property that can be identified without changing the identity of a substance (ex - boiling point, mass)
  20. block or area of the periodic table that represents those elements with their last electron in an 's' orbital
  21. block or area of the periodic table that represents those elements with their last electron in a 'd' orbital
  22. name for a negative ion that has gained electrons
Down
  1. subatomic particle with no charge and a mass of 1 amu
  2. the study of matter and the transformations it can undergo
  3. when inner core electrons block the attractive pull of the nucleus from outer valence electrons
  4. ability of an atom to attract electrons
  5. how close several measurements are to each other (reflection of the amount of care you take in your procedure - how consistent you are)
  6. elements on the left of the periodic table that lose electrons to become positive ions, they are typically shiny, maleable, and ductile
  7. chemical combination of matter, composed of more than 1 type of atom
  8. elements in main group 8, they have a full outer energy level and are very unreactive
  9. elements on the right of the periodic table that gain electrons to become negative ions, they are typically dull and brittle
  10. elements found in the center of the periodic table, they represent the 'd' block of the periodic table
  11. the amount of energy required to remove an electron from an atom
  12. name for a column on the periodic table, also called a group
  13. block or area of the periodic table that represents those elements with their last electron in a 'p' orbital
  14. state of matter with a fixed volume and fixed shape
  15. state of matter with a fixed volume and variable shape
  16. elements in main group 7, they have 7 valence electrons and are very electronegative
  17. smallest unit of matter
  18. atoms of the same element with different numbers of electrons and charges

40 Clues: smallest unit of matter • name for a row on the periodic table • anything with mass that takes up space • ability of an atom to attract electrons • the number of protons and neutrons in an atom • name for a positive ion that has lost electrons • name for a negative ion that has gained electrons • state of matter with a fixed volume and fixed shape • ...

Unit 5-Properties/Changes in Matter 2018-05-16

Unit 5-Properties/Changes in Matter crossword puzzle
Across
  1. Gas- group 18 on the periodic table
  2. of Conservation of Mass/Matter- mass is neither created or destroyed
  3. Reactions- changes that result in new substances
  4. horizontal row on the periodic table
  5. Change- a change that does not change the identity
  6. substance that enters a chemical reaction
  7. of a chemical reaction
  8. anything that occupies space
  9. vertical column on the periodic table
  10. Table- A chart of elements relating elements
  11. A pure substance
  12. Mixture- A mixture that is unevenly distributed
  13. Two or more atoms bonded together
  14. an element with properties shininess,ductility,etc
  15. Point- Change from solid to liquid
  16. substances that are combined but not chemically
Down
  1. define shape and volume
  2. Point- change from liquid to gas
  3. Two or more elements chemically combinded
  4. material that can be pulled into a wire
  5. Equations- a equation where the reactants and products are equal
  6. element that lacks properties of metal
  7. Mendeleev- created the first version of the periodic table
  8. material that can be pounded into shapes
  9. with properties of metal and nonmetal
  10. no define shape but define volume
  11. Electrons-order to form a shared pair
  12. the ability to transfer heat to another object
  13. Mixture- A mixture that is evenly distributed
  14. no define shape or volume

30 Clues: A pure substance • of a chemical reaction • define shape and volume • no define shape or volume • anything that occupies space • Point- change from liquid to gas • no define shape but define volume • Two or more atoms bonded together • Point- Change from solid to liquid • Gas- group 18 on the periodic table • horizontal row on the periodic table • ...

Unit 2: Atoms & the Periodic Table - Vocabulary Crossword Puzzle 2021-02-12

Unit 2: Atoms & the Periodic Table - Vocabulary Crossword Puzzle crossword puzzle
Across
  1. A particle with a negative charge
  2. Non-reactive elements in group 18A of the periodic table
  3. Horizontal (⬌) rows on the periodic table
  4. Atoms that gain or lose electrons; becoming charged-ion Charge An electric charge that forms on an atom when it gains or loses electrons
  5. Atoms that lose electrons and have a positive charge
  6. A particle with a neutral or no charge
  7. The smallest parts of matter
  8. Highly reactive metals in group 1A of the periodic table
  9. Are not malleable nor ductile, poor conductors, and have a High-non reactivity
  10. Highly reactive non-metals in group 17A of the periodic table
  11. Electrons in the outermost shell
  12. Are malleable & ductile, good conductors, and have a High-Low reactivity
Down
  1. The center of an atom is called a _______
  2. metals that form multiple ions and colorful compounds in groups 3-12
  3. How a chemical substance interacts with itself or with other materials, releasing energy
  4. Moderately reactive metals in group 2A of the periodic table
  5. A particle with a positive charge
  6. Measuring the size of atoms based on their distance from the nucleus
  7. Varies in being malleable & ductile, are semi-conductors, and have a Medium-Low reactivity
  8. Atoms that gain electrons and have a negative charge
  9. Vertical (⬍) rows on the periodic table
  10. A visual representation of an atom where electrons move along rings surrounding the nucleus
  11. Atoms of the same element that have differing numbers of neutrons

23 Clues: The smallest parts of matter • Electrons in the outermost shell • A particle with a positive charge • A particle with a negative charge • A particle with a neutral or no charge • Vertical (⬍) rows on the periodic table • The center of an atom is called a _______ • Horizontal (⬌) rows on the periodic table • Atoms that gain electrons and have a negative charge • ...

PS 4 periodic table review puzzle 2016-11-02

PS 4 periodic table review puzzle crossword puzzle
Across
  1. rows on the periodic table
  2. atomic __ is the total of the protons and neutrons
  3. type of bond where nonmetal bonds with another nonmetal
  4. because an atom is neutral there is an ___ number of protons and electrons
  5. elements touching the stair step line on periodic table
  6. when an atom gains or loses an electron
  7. atomic number is the number of
  8. type of bond where nonmetal bonds with metal
  9. columns on the periodic table; also called families
Down
  1. the periodic table is arranged in order of ___ atomic number
  2. in a covalent bond electrons are ___
  3. largest section of the periodic table
  4. atoms join together to form these
  5. when an atom gains or loses a neutron

14 Clues: rows on the periodic table • atomic number is the number of • atoms join together to form these • in a covalent bond electrons are ___ • largest section of the periodic table • when an atom gains or loses a neutron • when an atom gains or loses an electron • type of bond where nonmetal bonds with metal • atomic __ is the total of the protons and neutrons • ...

Brailynn crossword puzzle 2022-11-17

Brailynn crossword puzzle crossword puzzle
Across
  1. What month was helium discovered in?
  2. What is number 2 on the periodic table?
  3. Who created the periodic table?
  4. Who discovered gold?
  5. what element is Fe?
  6. What is number 1 on the periodic table?
Down
  1. What element has the atomic mass of 24.305?
  2. who discovered Chlorine?
  3. who discovered Radon?
  4. What is number 103 on the periodic table?
  5. What is number 109 on the periodic table?
  6. What element has a melting point of 1455 degrees Celsius

12 Clues: what element is Fe? • Who discovered gold? • who discovered Radon? • who discovered Chlorine? • Who created the periodic table? • What month was helium discovered in? • What is number 2 on the periodic table? • What is number 1 on the periodic table? • What is number 103 on the periodic table? • What is number 109 on the periodic table? • ...

Electrons and The Periodic Table 2022-01-26

Electrons and The Periodic Table crossword puzzle
Across
  1. The most reactive element on The Periodic Table.
  2. The modern-day Periodic Table is organized by increasing atomic ___.
  3. These are good conductors of energy.
  4. These elements are usually gases, except sulfur, Phosphorus, and Bromine.
  5. These rays have the shortest wavelength.
  6. This is a negatively charged, subatomic particle found in all atoms.
  7. Least reactive elements on The Periodic Table.
  8. The ability of an atom to attract electrons from another element.
  9. The greek word for frequency.
Down
  1. These elements share the properties of nonmetals and metals.
  2. As wavelength decreases, frequency ____.
  3. This principle states that electrons must occupy the lowest energy level first.
  4. The greek word for wavelength.
  5. Electrons move and behave like ____.
  6. On the Aufbau Diagram, electrons are depicted as ___.
  7. Published the first version of The Periodic Table.
  8. What is the height of the wave from zero to crest?
  9. The name of the elements in group 7A.
  10. How many electrons can each orbital hold?
  11. The number of orbitals block F contains.

20 Clues: The greek word for frequency. • The greek word for wavelength. • These are good conductors of energy. • Electrons move and behave like ____. • The name of the elements in group 7A. • As wavelength decreases, frequency ____. • These rays have the shortest wavelength. • The number of orbitals block F contains. • How many electrons can each orbital hold? • ...

Chemistry Extra Credit 2025-04-02

Chemistry Extra Credit crossword puzzle
Across
  1. a part or aspect of something abstract, especially one that is essential or characteristic
  2. group 2 on periodic table
  3. positively charged ion
  4. the basic unit of a chemical element.
  5. group 17 on periodic table
  6. and car}bon dioxide
  7. A chemical bond formed when two atoms share two
  8. a thing that is composed of two or more separate elements; a mixture.
  9. group 18 on periodic table
Down
  1. neutral subatomic particle
  2. group 1 on periodic table
  3. able to be hammered or pressed permanently out of shape without breaking or cracking.
  4. forms of the same element that contain equal numbers of protons but different numbers of neutrons
  5. negative subatomic particle
  6. A bond between atoms or ions that allows molecules to form
  7. positive subatomic particle
  8. negatively charged ion
  9. dissolved in water
  10. When a compound combines with oxygen gas to form water,
  11. all of the atoms (or ions) are arranged in a regular grid pattern

20 Clues: dissolved in water • and car}bon dioxide • positively charged ion • negatively charged ion • group 1 on periodic table • group 2 on periodic table • neutral subatomic particle • group 17 on periodic table • group 18 on periodic table • negative subatomic particle • positive subatomic particle • the basic unit of a chemical element. • A chemical bond formed when two atoms share two • ...

Chemistry Extra Credit 2025-03-28

Chemistry Extra Credit crossword puzzle
Across
  1. and carbon dioxide
  2. neutral subatomic particle
  3. a part or aspect of something abstract, especially one that is essential or characteristic
  4. A bond between atoms or ions that allows molecules to form
  5. negatively charged ion
  6. group 1 on periodic table
  7. negative subatomic particle
  8. a thing that is composed of two or more separate elements; a mixture.
  9. positive subatomic particle
  10. dissolved in water
Down
  1. positively charged ion
  2. group 17 on periodic table
  3. When a compound combines with oxygen gas to form water,
  4. group 2 on periodic table
  5. the basic unit of a chemical element.
  6. A chemical bond formed when two atoms share two
  7. able to be hammered or pressed permanently out of shape without breaking or cracking.
  8. all of the atoms (or ions) are arranged in a regular grid pattern
  9. forms of the same element that contain equal numbers of protons but different numbers of neutrons
  10. group 18 on periodic table

20 Clues: and carbon dioxide • dissolved in water • positively charged ion • negatively charged ion • group 2 on periodic table • group 1 on periodic table • group 17 on periodic table • neutral subatomic particle • group 18 on periodic table • negative subatomic particle • positive subatomic particle • the basic unit of a chemical element. • A chemical bond formed when two atoms share two • ...

You Should Know This Stuff 2025-04-30

You Should Know This Stuff crossword puzzle
Across
  1. the element with the most protons
  2. a substance in which all atoms are alike
  3. positively charged atom
  4. shiny and malleable substances
  5. the element with the least amount of protons
  6. a chemical that can dissolve in water and can combine with acids to form salts
  7. neutral charged atom
  8. an element or substance that is not a metal
  9. the element most commonly found in bananas
  10. very reactive elements that form a salt when it reacts with metal
Down
  1. nuclear charge number
  2. vertical rows in the periodic table
  3. a substance composed of two or more chemically bonded elements in fixed proportions
  4. horizontal rows of the periodic table
  5. negatively charged atom
  6. the group of gasses in the periodic table
  7. a radioactive metallic chemical element with the atomic number 88
  8. the mass of an atom
  9. the first in the noble gas group in the periodic table
  10. the element that living organisms need to breathe

20 Clues: the mass of an atom • neutral charged atom • nuclear charge number • negatively charged atom • positively charged atom • shiny and malleable substances • the element with the most protons • vertical rows in the periodic table • horizontal rows of the periodic table • a substance in which all atoms are alike • the group of gasses in the periodic table • ...

PERIODIC CLASSIFICATION OF ELEMENTS 2017-12-14

PERIODIC CLASSIFICATION OF ELEMENTS crossword puzzle
Across
  1. Groups in modern periodic table
  2. Halogens belong to this group of modern periodic table
  3. This classification worked well for first 20 elements
  4. Periods in modern periodic table
  5. Shortest period of modern periodic table
Down
  1. The number of electrons present in the valence shell of an atom of an element
  2. Longest period of modern periodic table
  3. Alkaline earth metals belong to this group of modern periodic table
  4. SHELL The outermost shell of an atom of an element
  5. These gases were discovered very late because of their low reactivity
  6. Incomplete period of modern periodic table

11 Clues: Groups in modern periodic table • Periods in modern periodic table • Longest period of modern periodic table • Shortest period of modern periodic table • Incomplete period of modern periodic table • SHELL The outermost shell of an atom of an element • This classification worked well for first 20 elements • Halogens belong to this group of modern periodic table • ...

Science Crossword by Charles Kajmowicz 2022-01-12

Science Crossword by Charles Kajmowicz crossword puzzle
Across
  1. Electrons not equal to the protons
  2. number the # of protons in an atom
  3. a column of elements on the periodic table
  4. ion ion with a net positive charge
  5. what semiconductors are made of
  6. positively charged sub-atomic particle
  7. up a small portion of the periodic table
Down
  1. ion Ion with a net negative charge
  2. zero-charged sub atomic particles
  3. negatively charged sub-atomic particle
  4. a row of elements on the periodic table
  5. makes up most of the periodic table
  6. same element and different # of neutrons
  7. center of the atom
  8. the mass of an atom

15 Clues: center of the atom • the mass of an atom • what semiconductors are made of • zero-charged sub atomic particles • ion Ion with a net negative charge • Electrons not equal to the protons • number the # of protons in an atom • ion ion with a net positive charge • makes up most of the periodic table • negatively charged sub-atomic particle • positively charged sub-atomic particle • ...

1.1 Atomic Structure & the Periodic Table 2021-01-12

1.1 Atomic Structure & the Periodic Table crossword puzzle
Across
  1. these are elements in Group 2 on the periodic table
  2. electrons found in the outermost energy level of an atom
  3. vertical columns on the periodic table
  4. these elements are located in Groups 3-12 on the periodic table
  5. the total number of protons + neutrons in the nucleus
  6. horizontal rows on the periodic table
Down
  1. arranged in increasing atomic number, so that elements with similar properties fall in the same column
  2. subatomic particle with a negative charge
  3. indicates the number of protons in the nucleus of an atom
  4. these are the most reactive metals on the periodic table; located in Group 1
  5. subatomic particle with a positive charge
  6. subatomic particle with no charge; located in the nucleus with protons
  7. these elements are not reactive because they have a full outer energy level; located in Group 18
  8. these are the most reactive nonmetals on the periodic table; located in Group 17

14 Clues: horizontal rows on the periodic table • vertical columns on the periodic table • subatomic particle with a negative charge • subatomic particle with a positive charge • these are elements in Group 2 on the periodic table • the total number of protons + neutrons in the nucleus • electrons found in the outermost energy level of an atom • ...

Unit 2 Crossword Puzzle 2025-10-28

Unit 2 Crossword Puzzle crossword puzzle
Across
  1. Group 2 on periodic table
  2. Between the alkaline earth metals and transition metals in period 6
  3. The measure of how easily an atom loses electrons
  4. Group 3-12 on periodic table
  5. Group 17 on periodic table
Down
  1. Increases going down a group, decreases going left to right across a period
  2. Group 18 on periodic table
  3. The measure of how easily an atom gains electrons
  4. The subatomic particles in the outermost shell of an atom
  5. Group 1 on periodic table
  6. Between the alkaline earth metals and transition metals in period 7
  7. The staircase on the periodic table

12 Clues: Group 2 on periodic table • Group 1 on periodic table • Group 18 on periodic table • Group 17 on periodic table • Group 3-12 on periodic table • The staircase on the periodic table • The measure of how easily an atom gains electrons • The measure of how easily an atom loses electrons • The subatomic particles in the outermost shell of an atom • ...

Science Vocab Words 2023-05-09

Science Vocab Words crossword puzzle
Across
  1. Positively charged and resides in the nucleus of an atom
  2. each of two or more forms of the same element that contain equal numbers of protons
  3. Rows of the periodic table of elements
  4. negatively charged and resides in the electronic cloud
  5. A group of atoms, usually but not always representing more than one element, joined by chemical bonds
  6. A phenomenon whereby certain isotopes known as radioisotopes are subject to a form of decay brought about by the emission of high-energy particles
  7. each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances
  8. The last element on the periodic table
  9. The first name of the person who made the periodic table
  10. symbol The number of protons in the nucleus of an atom
Down
  1. The number of protons in the nucleus of an atom
  2. The first element on the periodic table
  3. A pattern of probabilities regarding the regions that an electron can occupy within an atom in a particular energy state
  4. A substance made of two or more elements that have bonded chemically
  5. Rows of the periodic table of elements
  6. Neutral and resides in the nucleus of an atom
  7. Columns on the periodic table of elements
  8. The last name of the person who made the periodic table
  9. an atom or molecule with a net electric charge
  10. A group of atoms, usually but not always representing more than one element, joined by chemical bonds

20 Clues: Rows of the periodic table of elements • Rows of the periodic table of elements • The last element on the periodic table • The first element on the periodic table • Columns on the periodic table of elements • Neutral and resides in the nucleus of an atom • an atom or molecule with a net electric charge • The number of protons in the nucleus of an atom • ...

Atomic structure and the periodic table. 2022-12-08

Atomic structure and the periodic table. crossword puzzle
Across
  1. The added weight of all of the subatomic particles
  2. Left to right on the periodic table
  3. What do valence electrons determine
  4. How well you can mold something
  5. How well something conducts heat or electricity
  6. The outer most electrons
  7. Are found on the right of the periodic table and are dull, brittle, and insulators
  8. Contains protons and neutrons
  9. Rings surrounding the nucleus containing electrons
  10. The amount something shines
  11. A subatomic particle in the nucleus which has a positive charge
Down
  1. Up and down on the periodic table
  2. A table containing the elements
  3. the amount of valence electrons a element has and is used to identify elements
  4. Doesn't conduct heat or electricity
  5. Contains a nucleus and an electron cloud
  6. A subatomic particle that has a negative charge orbiting the nucleus of and atom
  7. Can be pulled into a wire
  8. Are found on the left of the periodic table and are malleable, conductors, have luster, and are ductile.
  9. A subatomic particle in the nucleus which has a neutral charge
  10. Contain some of the properties of metal and some of non-metals

21 Clues: The outer most electrons • Can be pulled into a wire • The amount something shines • Contains protons and neutrons • A table containing the elements • How well you can mold something • Up and down on the periodic table • Doesn't conduct heat or electricity • Left to right on the periodic table • What do valence electrons determine • Contains a nucleus and an electron cloud • ...

Chemicals and Their Properties 2013-05-13

Chemicals and Their Properties crossword puzzle
Across
  1. group 18 on periodic table
  2. the vertical columns on perodic table
  3. a defined change in which a substance remains the same substance but changes its physical properties in some way
  4. a change in which a substance changes into one or more diferent substances
  5. a property that is simply a description and does not have a numerical value
  6. charged atoms
  7. negative ion
  8. negativeley charged particles found orbiting nucleus of an atom
  9. initial substance
  10. end result of substances
Down
  1. neutal charged particles found in nucleus of an atom
  2. an information system in the form of special labels, symbols and Material Safety Data Sheets(MSDS) for potentially dangerous chemicals used on the job
  3. group 1 on periodic table
  4. group 17 on periodic table
  5. a property that can be measured
  6. description of a substance that does not involve forming a new substance
  7. description of what a substance does as it changes in to once or more substances
  8. a characteristic, quality or feature of a matter
  9. positive ion
  10. group 2 on periodic table
  11. positively charged particles found in centre of nucleus of an atom

21 Clues: positive ion • negative ion • charged atoms • initial substance • end result of substances • group 1 on periodic table • group 2 on periodic table • group 17 on periodic table • group 18 on periodic table • a property that can be measured • the vertical columns on perodic table • a characteristic, quality or feature of a matter • neutal charged particles found in nucleus of an atom • ...

Periodic Table, Elements, Compounds, and Molecules 2023-02-17

Periodic Table, Elements, Compounds, and Molecules crossword puzzle
Across
  1. O3
  2. C
  3. CO2
  4. The letter or letters that represent an element (e.g. Fe)
  5. A.M.U.
  6. The last column in the periodic table
  7. Au
  8. FeS2
Down
  1. Ge
  2. Ne
  3. The number that corresponds to each element in the periodic table
  4. Fe
  5. Am
  6. He
  7. W
  8. S
  9. C2H4
  10. H2O
  11. Ti
  12. O

20 Clues: C • W • S • O • Ge • O3 • Ne • Fe • Am • He • Ti • Au • CO2 • H2O • C2H4 • FeS2 • A.M.U. • The last column in the periodic table • The letter or letters that represent an element (e.g. Fe) • The number that corresponds to each element in the periodic table

Periodic Table, Elements, Compounds, and Molecules 2023-02-17

Periodic Table, Elements, Compounds, and Molecules crossword puzzle
Across
  1. O3
  2. C
  3. CO2
  4. The letter or letters that represent an element (e.g. Fe)
  5. A.M.U.
  6. The last column in the periodic table
  7. Au
  8. FeS2
Down
  1. Ge
  2. Ne
  3. The number that corresponds to each element in the periodic table
  4. Fe
  5. Am
  6. He
  7. W
  8. S
  9. C2H4
  10. H2O
  11. Ti
  12. O

20 Clues: C • W • S • O • Ge • O3 • Ne • Fe • Am • He • Ti • Au • CO2 • H2O • C2H4 • FeS2 • A.M.U. • The last column in the periodic table • The letter or letters that represent an element (e.g. Fe) • The number that corresponds to each element in the periodic table

The Periodic Table 2023-03-20

The Periodic Table crossword puzzle
Across
  1. Mendeleev ordered the his Periodic Table by increasing atomic _____________ .
  2. The Modern Periodic Table is ordered by increasing atomic __________ .
  3. How does the reactivity change as you move down the alkali metals.
  4. Most metals are this state of matter at room temperature.
  5. A column of the Periodic Table.
  6. The lowest mass halogen.
  7. The only metal that is a liquid at room temperature.
  8. Metals bend and can be shaped without breaking. They are _________.
  9. This element is in Period 3 and Group 13.
  10. Non-Metals break under stress. They are _________.
  11. A row of the Periodic Table.
  12. The lowest mass alkali metal.
Down
  1. Moseley discovered this particle, which led to changes in the Periodic Table.
  2. The lowest mass Noble Gas.
  3. Metals have high thermal and electrical __________.
  4. Mendeleev left these when he believed an element had not yet been discovered.
  5. This element has a higher atomic number but a lower atomic mass than the element before it. This caused an issue for Mendeleev when ordering the elements.
  6. Mendeleev grouped elements with similar __________.
  7. The property of an element that relates to whether it is shiny or dull.
  8. This repeats every time a new period is started.
  9. The name of the group containing unreactive elements.
  10. The lowest mass alkaline earth metal.

22 Clues: The lowest mass halogen. • The lowest mass Noble Gas. • A row of the Periodic Table. • The lowest mass alkali metal. • A column of the Periodic Table. • The lowest mass alkaline earth metal. • This element is in Period 3 and Group 13. • This repeats every time a new period is started. • Non-Metals break under stress. They are _________. • ...

Bonding MI #1 Crossword 2023-02-12

Bonding MI #1 Crossword crossword puzzle
Across
  1. covalent bonds _____ electrons
  2. most reactive metal
  3. nonmetals only
  4. Ionic bonds _____ electrons
  5. second-last row
  6. _______ bonds are the strongest
  7. Max dots in a diagram
  8. energy levels represent the electron ______
  9. last row on periodic table
  10. formed between a cation and anion
  11. noble gas reactivity
  12. first row on periodic table
  13. diagram with the symbol in the center and dots placed around
  14. made only of metals
Down
  1. Ionic dot diagrams are surrounded in ________ with a charge symbol
  2. electrons that are alone in an atom
  3. halogens and Alkali react a..
  4. most reactive nonmetal
  5. attraction between atoms
  6. second row on periodic table
  7. __________ metals rows 3-12
  8. 2,8,8,18,18,32,32 is a table of ______ levels
  9. electrons in the topmost energy level
  10. made of just silicon and carbon
  11. metalic bonds have and electron ___

25 Clues: nonmetals only • second-last row • most reactive metal • made only of metals • noble gas reactivity • Max dots in a diagram • most reactive nonmetal • attraction between atoms • last row on periodic table • Ionic bonds _____ electrons • __________ metals rows 3-12 • first row on periodic table • second row on periodic table • halogens and Alkali react a.. • covalent bonds _____ electrons • ...

Periodic Table Crossword 2021-05-12

Periodic Table Crossword crossword puzzle
Across
  1. negatively charged particle that orbits the center of an atom
  2. elements and/or compounds that when put together are unable to react chemically. The noble gases (group 18) elements are inert because of a full valence shell.
  3. an element that has some properties of a metal and some properties of a nonmetal. The metalloids are found on the boron staircase
  4. positively charged particle in the nucleus of the atom
  5. an atom that has gained or lost one or more electrons.
  6. Group 1 metals on the periodic table that contain 1 valence electron and lose their valence electrons the most easily, making them the most reactive metals.
  7. ­Group 1 metals on the periodic table that contain 2 valence electrons and are the second most reactive metals.
  8. very center of the atom
  9. Group 18 elements on the periodic table that contain 8 valence electrons
  10. a vertical column (up and down) on the periodic table
Down
  1. electrons that are located in the outermost energy level of an atom
  2. Group 17 nonmetals on the periodic table that contain 7 valence electrons.
  3. describes how likely an element is to form bonds with other elements.
  4. an element that does not conduct electricity or heat and is usually a gas at room temperature. Nonmetals are brittle, have high ionization energies and high electronegativity values. Nonmetals tend to gain electrons to form anions. Nonmetals are found on the right side of the boron staircase.
  5. the number of protons contained in each nucleus of its atoms of the element. Located over the elemental symbol (at the top of the element box on the periodic table).
  6. the number of protons and neutrons in the nucleus of one atom of the element. Located under the elemental symbol (at the bottom of the element box on the periodic table).
  7. an element or substance that conducts heat and electricity, is malleable and ductile and has low ionization energy and low electronegativity values. Metals tend to lose their electrons to form cations. Metals are found on the left side of the boron staircase.
  8. a substance that cannot be broken down into a simpler substance by ordinary chemical means.
  9. a horizontal row (left to right) in the periodic table.
  10. the smallest unit of an element that has all of the properties of the element; basic building block of matter.

20 Clues: very center of the atom • a vertical column (up and down) on the periodic table • positively charged particle in the nucleus of the atom • an atom that has gained or lost one or more electrons. • a horizontal row (left to right) in the periodic table. • negatively charged particle that orbits the center of an atom • ...

Periodic Table: Crossword Puzzle 2012-06-06

Periodic Table: Crossword Puzzle crossword puzzle
Across
  1. Description of the elements on the right side of the periodic table
  2. The second group of the periodic table
  3. The number of noble gases on the periodic table
  4. The person who created the periodic table in 1869 to show trends between elements
  5. Radii from left to right and increases from top to bottom
Down
  1. The number of groups on the periodic table
  2. The element with an atomic number of 1
  3. Description of the elements on the left side of the periodic table
  4. increases from left to right and decreases from top to bottom
  5. The first group of the periodic table
  6. The number of periods there are on the periodic table

11 Clues: The first group of the periodic table • The element with an atomic number of 1 • The second group of the periodic table • The number of groups on the periodic table • The number of noble gases on the periodic table • The number of periods there are on the periodic table • Radii from left to right and increases from top to bottom • ...

Chemistry Final Examination 2023-11-22

Chemistry Final Examination crossword puzzle
Across
  1. Used to hold varying volumes of liquid
  2. Boron, Oxygen, Itrium
  3. The branch of chemistry that deals with the study of carbon compounds
  4. Used to heat things in laboratory
  5. the 53th element in periodic table
  6. Green chemistry is an approach to chemistry that endeavour to prevent or reduce
  7. A flammable greenhouse gas
  8. Used to aide in the transfer of liquids
  9. OH-
  10. The chemical symbol for sodium
  11. The horizontal rows on the periodic table
  12. The prefix for four in chemical nomenclature
Down
  1. Mg
  2. The vertical columns on the periodic table
  3. Positive charge
  4. The chemical symbol for gold
  5. negative charge
  6. water
  7. branch of chemistry that focusing their study in living organisms
  8. He discovered the quantum theory
  9. salt
  10. The chemical symbol for helium
  11. combination of two or more atom
  12. he develop the first periodic table
  13. The prefix for nine in chemical nomenclature
  14. the one who discovered electron

26 Clues: Mg • OH- • salt • water • Positive charge • negative charge • Boron, Oxygen, Itrium • A flammable greenhouse gas • The chemical symbol for gold • The chemical symbol for helium • The chemical symbol for sodium • combination of two or more atom • the one who discovered electron • He discovered the quantum theory • Used to heat things in laboratory • the 53th element in periodic table • ...

VOCABULARY IN CHEMISTRY 2023-04-25

VOCABULARY IN CHEMISTRY crossword puzzle
Across
  1. Type of elements in the left side of the periodic table
  2. Unit to measure mass
  3. The conditions in which a gas occupies 22.7L at 25C and 1 atm.
  4. Last part of the chemical reaction
  5. Is the mass that appears in the periodic table.
  6. Negative particle of the atom
  7. Is the number of protons of an atom.
  8. Energy that needs to have a molecule to react
  9. Type of elements in the right side of the periodic table
  10. Chemical property that describes the tendency of an atom or a functional group to attract electrons toward itself.
  11. Type of element in the last group of the periodic table
Down
  1. Fist part of the chemical reaction
  2. Ion with positive charge
  3. Part of chemistry that studies changes in a chemical reaction
  4. Ion with negative charge
  5. Process that involves rearrangement of atoms
  6. An atom with charge is called...
  7. Positive particle of the atom
  8. Element with symbol K
  9. Unit for the amount of substance
  10. Neutral particle of the atom

21 Clues: Unit to measure mass • Element with symbol K • Ion with positive charge • Ion with negative charge • Neutral particle of the atom • Positive particle of the atom • Negative particle of the atom • An atom with charge is called... • Unit for the amount of substance • Fist part of the chemical reaction • Last part of the chemical reaction • Is the number of protons of an atom. • ...

Periodic Table Crossword 2023-04-26

Periodic Table Crossword crossword puzzle
Across
  1. Elements that are dull, brittle, and often a gas at room temperature.
  2. Atomic number is the number of _________________ an atom has.
  3. ______________ gases are also called nonmetals.
  4. Group 17 on the Periodic Table.
  5. Positively charged ion.
  6. Bond between nonmetals.
  7. Atoms of the same elment that have a different number of neutrons.
  8. An electron _________ model has the element symbol and valence electrons.
Down
  1. Rows (across) on the Periodic Table.
  2. Columbs (up/down) on the Periodic Table.
  3. Atomic mass is the number of protons plus the number of ________________.
  4. Elements that are shiny and good conductors.
  5. Negatively charged ion.
  6. A ____________ model has the number of electrons and rings.
  7. The positively charged center of the atom.
  8. Particles with a -1 charge that occupies the space around the nucleus.
  9. Smallest particle of an element that retains the elements properties.
  10. An electron _____________ model is the most accurate model.
  11. Metals are found on the ___________ side of the stair step on the Periodic Table.
  12. An atom with charge.

20 Clues: An atom with charge. • Negatively charged ion. • Positively charged ion. • Bond between nonmetals. • Group 17 on the Periodic Table. • Rows (across) on the Periodic Table. • Columbs (up/down) on the Periodic Table. • The positively charged center of the atom. • Elements that are shiny and good conductors. • ______________ gases are also called nonmetals. • ...

Periodic Table Crossword By Rylie Restivo 2023-04-26

Periodic Table Crossword By Rylie Restivo crossword puzzle
Across
  1. Atomic mass is the number of protons plus the number of ________________.
  2. Atomic number is the number of _________________ an atom has.
  3. A ____________ model has the number of electrons and rings.
  4. Particles with a -1 charge that occupies the space around the nucleus.
  5. Smallest particle of an element that retains the elements properties.
  6. Negatively charged ion.
  7. Elements that are shiny and good conductors.
  8. An electron _____________ model is the most accurate model.
Down
  1. Bond between nonmetals.
  2. Group 17 on the Periodic Table.
  3. Atoms of the same elment that have a different number of neutrons.
  4. Rows (across) on the Periodic Table.
  5. An atom with charge.
  6. Columbs (up/down) on the Periodic Table.
  7. ______________ gases are also called nonmetals.
  8. An electron _________ model has the element symbol and valence electrons.
  9. Metals are found on the ___________ side of the stair step on the Periodic Table.
  10. Positively charged ion.
  11. Elements that are dull, brittle, and often a gas at room temperature.
  12. The positively charged center of the atom.

20 Clues: An atom with charge. • Bond between nonmetals. • Positively charged ion. • Negatively charged ion. • Group 17 on the Periodic Table. • Rows (across) on the Periodic Table. • Columbs (up/down) on the Periodic Table. • The positively charged center of the atom. • Elements that are shiny and good conductors. • ______________ gases are also called nonmetals. • ...

MODERN PERIODIC TABLE 2025-11-05

MODERN PERIODIC TABLE crossword puzzle
Across
  1. Horizontal rows in the periodic table.
  2. Elements in Groups 3–12; also known as transition ______.
  3. Group of elements containing fluorine, chlorine, bromine, iodine, and astatine.
  4. The element in Group 1 that reacts violently with water.
  5. The scientist who arranged elements in octaves.
  6. Shells The period number represents the number of these energy levels.
  7. The scientist who arranged elements in triads.
  8. The group known as the salt formers.
  9. Earth Elements in Group 2; also called alkaline earth metals.
  10. Elements that are dull, brittle, and poor conductors of heat and electricity.
  11. Gases Elements in Group 18; very stable and unreactive gases.
Down
  1. The element that is a nonmetal but placed with Group 1 because of its single electron.
  2. Periodic Law The law stating that properties of elements are periodic functions of their atomic numbers.
  3. Elements in Group 1; very reactive metals.
  4. The scientist who arranged elements by increasing atomic number.
  5. Elements that are shiny, malleable, and good conductors of heat and electricity.
  6. The Russian chemist who created the first periodic table.
  7. The most abundant gas in Earth’s atmosphere, found in Group 15.
  8. Elements with properties of both metals and nonmetals.
  9. The element symbol for calcium, found in Group 2.
  10. The element symbol for the lightest noble gas.
  11. Vertical columns in the periodic table.
  12. Scientist who discovered the concept of atomic number through X-ray experiments.
  13. Number The number of protons in an atom, used to arrange elements in the modern periodic table.

24 Clues: The group known as the salt formers. • Horizontal rows in the periodic table. • Vertical columns in the periodic table. • Elements in Group 1; very reactive metals. • The scientist who arranged elements in triads. • The element symbol for the lightest noble gas. • The scientist who arranged elements in octaves. • The element symbol for calcium, found in Group 2. • ...

The Periodic Table 2017-12-18

The Periodic Table crossword puzzle
Across
  1. the ease and speed with which an element combines, or reacts, with other elements and compounds
  2. an element in Group 18 of the periodic table
  3. shininess
  4. the ability of an object to carry electrical current
  5. an element found in Group 17 of the periodic table
  6. an element in group 1 of the periodic table
  7. arrangements of the elements
  8. a class of elements characterized by physical properties that include shininess, malleability, ductility, and conductitvity
  9. the gradual wearing away of a metal element due to wear away the metal
Down
  1. a term used to describe materials that can be hammered or rolled into flat sheets
  2. 1 of the elements in group 3
  3. the ability of an object to transfer heat
  4. a horizontal row on elements in the periodic table
  5. an element that lacks most of the properties of a metal
  6. a substance that can conduct electric current under some conditions
  7. the average mass of all the isotopes of an element
  8. a one or two letter representation of an element
  9. a term used to describe a material that can be pulled out into long wire
  10. a element that has some characteristics of both metal and nonmetals
  11. a vertical row of elements in the periodic table

20 Clues: shininess • 1 of the elements in group 3 • arrangements of the elements • the ability of an object to transfer heat • an element in group 1 of the periodic table • an element in Group 18 of the periodic table • a one or two letter representation of an element • a vertical row of elements in the periodic table • a horizontal row on elements in the periodic table • ...

Periodic Table Crossword Puzzle 2025-11-21

Periodic Table Crossword Puzzle crossword puzzle
Across
  1. a metalloid on The Periodic Table
  2. Lanthanides have ____ melting points and _____ boiling points (same word)
  3. _______ are in group 2
  4. Halogens are the most _______ nonmetals
  5. Copper is in _____ ____
  6. An atom will have a consistent ion chrage patter that will be produced when transfering ______ to form and ionic bond
  7. how many valence electrons does group 16 have?
  8. Mosely recognized that the Periodic Table is organized by increasing _________
  9. Alkiline Earth Metals have a gray white _______ when cut
  10. ______ are all noble gasses
  11. Metals _____ electrons when forming ions
  12. _____ is a metal
  13. The Halogen groups are the only groups that contain solids
  14. Noble gasses are on the _____ hand side of the Periodic table
  15. ________ are the second best conductors behind metals
  16. Anthinides are all _________
  17. Who is considered the father of the Periodic Table?
Down
  1. Nonmetals are ______ and break easily
  2. Anions are _______ that become negative ions
  3. All anthinides are ___ ____
  4. Alkali metals contain the ______ atoms in the period
  5. ________ metlas that are ductile and malleable
  6. _______ ____ are colorless, odorless, and tastlest
  7. The Periodic Table is organized by groups and ______
  8. Alkali metals are the _____ reactive metals
  9. Nitrogen has ____ valence electrons
  10. Metals will _______ when exposed to natural forces
  11. _________ react violently with most nonmetals
  12. _______ have the consistancy of cream cheese
  13. Metals that become positive are called ______

30 Clues: _____ is a metal • _______ are in group 2 • Copper is in _____ ____ • All anthinides are ___ ____ • ______ are all noble gasses • Anthinides are all _________ • a metalloid on The Periodic Table • Nitrogen has ____ valence electrons • Nonmetals are ______ and break easily • Halogens are the most _______ nonmetals • Metals _____ electrons when forming ions • ...

Crossword 2013-12-02

Crossword crossword puzzle
Across
  1. a horizontal row of elements in the periodic table
  2. another term for atomic mass
  3. has properties that is a mix between metals and non-metals
  4. the way that elements are arranged in the periodic table
  5. the number of protons in the nucleus of an atom, located above the element symbol
  6. another word for group
  7. elements atomic number is 8
  8. the total number of protons and neutrons in an atoms nucleus
  9. element symbol is Fe
  10. a vertical column of elements on the periodic table
  11. metals not a metal
  12. located under the atomic mass
Down
  1. element is located in Group 18 and period 1
  2. table that organizes elements
  3. the smallest piece of matter
  4. two or more elements mixed together to form a
  5. a pure substance
  6. a properties that has to do with heat

18 Clues: a pure substance • metals not a metal • element symbol is Fe • another word for group • elements atomic number is 8 • the smallest piece of matter • another term for atomic mass • table that organizes elements • located under the atomic mass • a properties that has to do with heat • element is located in Group 18 and period 1 • two or more elements mixed together to form a • ...

METALS AND NON METALS 2015-12-10

METALS AND NON METALS crossword puzzle
Across
  1. 80% of the elements
  2. Metals are good conductors of which makes them ideal for making wires
  3. This nonmetal, a precious form of Carbon, does not conduct electricity
  4. A precious metal used to make jewelry
  5. This nonmetal, a form of Carbon, conducts electricity
  6. Glass and wood are examples
  7. Metals are good conductors of which makes them ideal for making wires
  8. right side of the semi metal
  9. A metal that is liquid at room temperature
  10. An element's shine
Down
  1. Side of the periodic table where metals are found
  2. Mixture of two or more different metals
  3. first element of periodic table
  4. rows are there in the periodic table
  5. Many metals have a surface
  6. Metal used to make foil for cooking
  7. The property of being easy to bend or flatten
  8. 2nd element in the periodic table
  9. Metal used to make coins and jewelry

19 Clues: An element's shine • 80% of the elements • Many metals have a surface • Glass and wood are examples • right side of the semi metal • first element of periodic table • 2nd element in the periodic table • Metal used to make foil for cooking • rows are there in the periodic table • Metal used to make coins and jewelry • A precious metal used to make jewelry • ...

The Periodic Table 2015-02-10

The Periodic Table crossword puzzle
Across
  1. Only nonmetal in group 14
  2. Elements in group 17 of the periodic table
  3. The ability of a metal to reflect light
  4. The elements in groups 3-12
  5. A column on the periodic table
  6. Has the smallest atomic mass
Down
  1. The rows on the periodic table
  2. Elements in group 1
  3. Found on the right side of the periodic table
  4. 3/4 of the elements on the periodic table
  5. Conducts electricity at high temperatures, but not at low temperatures
  6. The ability of a metal to reflect light
  7. Ability of a substance to be hammered or rolled into thin sheets
  8. Gases Elements in group 18

14 Clues: Elements in group 1 • Only nonmetal in group 14 • Gases Elements in group 18 • The elements in groups 3-12 • Has the smallest atomic mass • The rows on the periodic table • A column on the periodic table • The ability of a metal to reflect light • The ability of a metal to reflect light • 3/4 of the elements on the periodic table • Elements in group 17 of the periodic table • ...

Periodic Table 2013-02-04

Periodic Table crossword puzzle
Across
  1. element to the right of nickel
  2. element with the atomic mass 35.453
  3. element with the chemical symbol K.
  4. element named after a planet
  5. an element with the atomic number 47
  6. the number of elements in the periodic table.
  7. the periodic ______.
  8. another particle that exists in the nucleus of an atom
  9. element to the left of cobalt
Down
  1. an element below silver
  2. positively charged particles in an atoms nucleus
  3. element with the chemical symbol Na
  4. symbol an element goes by
  5. the smallest particle that can still be considered an element
  6. element with the atomic number 18
  7. an isotope is identified by its ______.
  8. the elements are organized by their atomic _______.
  9. an atom with the same number of protons and different numbers of neutrons.
  10. element with the atomic number 28

19 Clues: the periodic ______. • an element below silver • symbol an element goes by • element named after a planet • element to the left of cobalt • element to the right of nickel • element with the atomic number 18 • element with the atomic number 28 • element with the chemical symbol Na • element with the atomic mass 35.453 • element with the chemical symbol K. • ...

periodic table 2020-11-09

periodic table crossword puzzle
Across
  1. 16
  2. 17
  3. 4
  4. 6
  5. 19
  6. 8
  7. 14
  8. 2
  9. 10
Down
  1. 15
  2. 13
  3. 5
  4. 12
  5. 9
  6. 18
  7. 7
  8. 11
  9. 1
  10. 3

19 Clues: 4 • 5 • 9 • 7 • 6 • 8 • 1 • 2 • 3 • 15 • 13 • 16 • 17 • 12 • 18 • 19 • 11 • 14 • 10

Periodic Table 2023-11-30

Periodic Table crossword puzzle
Across
  1. sodium is this kind of element
  2. metals have a high ___ point
  3. alkaline earth metals ___ in air
  4. noble gasses are
  5. alkali group 1 period 2
  6. transition metals come from ___
  7. neon is this kind of element
  8. has a cream cheese texture
  9. transition metal group 5 period 4
Down
  1. silicon is this kind of element
  2. the first element found
  3. majority of the elements are
  4. are radioactive
  5. are "rare earth metals"
  6. better conductors than metals and nonmetals
  7. nonmetals can ___ easily
  8. nonmetals are
  9. alkaline earth metal group 2 period 5
  10. periods go

19 Clues: periods go • nonmetals are • are radioactive • noble gasses are • the first element found • are "rare earth metals" • alkali group 1 period 2 • nonmetals can ___ easily • has a cream cheese texture • metals have a high ___ point • majority of the elements are • neon is this kind of element • sodium is this kind of element • silicon is this kind of element • transition metals come from ___ • ...

Periodic table 2023-10-19

Periodic table crossword puzzle
Across
  1. what is Zn
  2. what Nobel gas has the atomic number of 10
  3. what is the name of group 1
  4. negative charged partial
  5. what does the atomic number represents
  6. the rule that says you need 8 Valence electrons to be stable
  7. Electrons in the outermost layer are called
  8. What is the letter in the middle of the element box
  9. the side to sides are called what
  10. protons + neutrons: atomic mass
Down
  1. who created the perdioc table
  2. the up and down are called what
  3. what is the name of the element with a atomic number 13
  4. what has a positive charge
  5. what group is Iron in
  6. what is group 18 called
  7. what alkali metal is Li
  8. what alkaline earth metal is Ba
  9. neutrons are___ atoms
  10. the is the element C

20 Clues: what is Zn • the is the element C • what group is Iron in • neutrons are___ atoms • what is group 18 called • what alkali metal is Li • negative charged partial • what has a positive charge • what is the name of group 1 • who created the perdioc table • the up and down are called what • what alkaline earth metal is Ba • protons + neutrons: atomic mass • ...

Periodic Table 2024-07-26

Periodic Table crossword puzzle
Across
  1. Fe
  2. Ar
  3. Ne
  4. Calcium
  5. Sodium
  6. P
  7. Aluminium
  8. F
  9. Gold
  10. S
Down
  1. Zn
  2. Mn
  3. Magnesium
  4. Be
  5. Hydrogen
  6. Ag
  7. Helium
  8. Cu
  9. Silicon

19 Clues: P • F • S • Zn • Mn • Fe • Ar • Ne • Be • Ag • Cu • Gold • Sodium • Helium • Calcium • Silicon • Hydrogen • Magnesium • Aluminium

Periodic table 2023-05-09

Periodic table crossword puzzle
Across
  1. there are 7 of them and they start on the left of the periodic table
  2. negative charged particle in the atom
  3. A substance that can flow freely but is of constant volume
  4. The group that holds neon
  5. Total number of protons and neutrons in the nucleus
  6. any of the set of metallic elements occupying a central block
  7. a substance or matter in a state in which it will expand freely to fill the whole of a container
  8. any of a number of subatomic particles carrying a fractional electric charge
Down
  1. The electrons in the outermost shell of an atom
  2. A element or substance that is not a metal
  3. the number of protons in the nucleus
  4. Neutrally charged particle in the atom
  5. to or more forms of the same element that have equal numbers of protons but a different number of nuetrons
  6. The group that holds lithium
  7. A negative charge surrounding the atomic nucleus
  8. Firm and stable in shape
  9. smallest point of an element
  10. The core of an atom that holds neutrons and protons
  11. A positively charged particle in an atom

19 Clues: Firm and stable in shape • The group that holds neon • The group that holds lithium • smallest point of an element • the number of protons in the nucleus • negative charged particle in the atom • Neutrally charged particle in the atom • A positively charged particle in an atom • A element or substance that is not a metal • The electrons in the outermost shell of an atom • ...

Periodic Table 2025-02-23

Periodic Table crossword puzzle
Across
  1. The element in Group 7, period 5.
  2. A property of Group 1.
  3. Group 1.
  4. A non-metal with the symbol 'Kr'.
  5. A property of Group 7.
  6. The most reactive metal in Group 7.
  7. The second most reactive element in Group 0.
  8. The least reactive metal in Group 7.
  9. The element used in swimming pools.
Down
  1. The element in Group 1, period 1.
  2. A non-metal with the symbol of the third letter in the alphabet.
  3. Group 0.
  4. A metal with the symbol 'Zn'.
  5. A metal with the symbol 'Al'.
  6. A metal with the symbol 'Fe'.
  7. A property of Group 1.
  8. The most reactive metal in group 1.
  9. The things that make up the periodic table.
  10. Group 7.
  11. A metal with the symbol 'Au'.
  12. A non-metal with the symbol 'N'.

21 Clues: Group 0. • Group 1. • Group 7. • A property of Group 1. • A property of Group 1. • A property of Group 7. • A metal with the symbol 'Zn'. • A metal with the symbol 'Al'. • A metal with the symbol 'Fe'. • A metal with the symbol 'Au'. • A non-metal with the symbol 'N'. • The element in Group 1, period 1. • The element in Group 7, period 5. • A non-metal with the symbol 'Kr'. • ...

Periodic Table Terms 2020-10-12

Periodic Table Terms crossword puzzle
Across
  1. First group on the periodic table
  2. vertical columns on the periodic table that tell you the valence electron number of an element
  3. a class of elements that are malleable and is a good conductor of heat and electricity
  4. Family that has the largest amounts of elements in it and are all metals
Down
  1. the number of electrons in the outermost shell of an element
  2. the most reactive family on the periodic table
  3. 2nd most reactive family on the periodic table
  4. also known as inert gases and are unreactive
  5. Top of bottom two rows taken out of the periodic table
  6. bottom of bottom to rows taken out of the periodic table
  7. horizontal rows on the periodic table
  8. a class of elements that are dull and a poor conductor of heat and electricity

12 Clues: First group on the periodic table • horizontal rows on the periodic table • also known as inert gases and are unreactive • the most reactive family on the periodic table • 2nd most reactive family on the periodic table • Top of bottom two rows taken out of the periodic table • bottom of bottom to rows taken out of the periodic table • ...

periodic table 2016-09-08

periodic table crossword puzzle
Across
  1. elements are the building blocks of
  2. who created the periodic table
  3. z is for
  4. elements are grouped into
  5. h is for
  6. table table of all elements organized to relate to one another
  7. what do we need to live
  8. eighteen how many elements are there
  9. atoms came from the greek word meaning
  10. how did he know there were missing elements
Down
  1. that make up about almost everything
  2. masson the bottom of the elements name
  3. are found in the nucleus
  4. how many families are on the periodic table
  5. how were the elements organized
  6. f is for
  7. properties what is weight of standard samples of elements
  8. in the top left of the element
  9. unchangable substances

19 Clues: z is for • f is for • h is for • unchangable substances • what do we need to live • are found in the nucleus • elements are grouped into • who created the periodic table • in the top left of the element • how were the elements organized • elements are the building blocks of • that make up about almost everything • masson the bottom of the elements name • ...

Periodic Table words 2023-05-02

Periodic Table words crossword puzzle
Across
  1. a type of bond with two non metals
  2. a type of bond with one metal and one non metal
  3. Elements with luster and they are conductors
  4. The electrons in the outer shell of the atom
  5. The horizontal lines of the periodic table
  6. what the element is called
  7. Elements combine together to make a ___
  8. What the elements consist of
  9. Elements that are brittle and insulators
  10. The vertical lines of the periodic table
Down
  1. a table which shows information about elements
  2. Elements that are semi-conductors
  3. How heavy an element is
  4. The negative charge outside the nucleus of the atom
  5. No charge in the atom
  6. The circles surrounding the nucleus of the atom
  7. Elements mix together to make a ___
  8. The positive charge in an atom
  9. The number of an element
  10. What's in the periodic table
  11. The letters in the table

21 Clues: No charge in the atom • How heavy an element is • The number of an element • The letters in the table • what the element is called • What's in the periodic table • What the elements consist of • The positive charge in an atom • Elements that are semi-conductors • a type of bond with two non metals • Elements mix together to make a ___ • Elements combine together to make a ___ • ...

The Periodic Table and its Trends 2024-05-02

The Periodic Table and its Trends crossword puzzle
Across
  1. Is sulfur a nonmetal,metal,or a metalloid
  2. what is diagram called that includes all the elements
  3. what group is hydrogen in
  4. what is the most stable group
  5. what is on the right side of periodic table
  6. what group is Helium in
  7. what side in the periodic table is reactive
  8. what shows how many protons the element has
Down
  1. how many valence electrons does boron have
  2. what are things in the periodic table called
  3. what are the electrons on the outer shell
  4. what is on the staircase
  5. what group is magnesium
  6. what is on the left side of periodic table
  7. what is a period in the chemistry table

15 Clues: what group is magnesium • what group is Helium in • what is on the staircase • what group is hydrogen in • what is the most stable group • what is a period in the chemistry table • Is sulfur a nonmetal,metal,or a metalloid • what are the electrons on the outer shell • how many valence electrons does boron have • what is on the left side of periodic table • ...

Atoms Elements and Compounds 2025-05-02

Atoms Elements and Compounds crossword puzzle
Across
  1. a list of all the elements
  2. atoms of elements joined together
  3. starting chemicals in a chemical reaction
  4. a column in the periodic table
  5. the name for group 7
  6. shiny substances usually solid-on right of periodic table
  7. where compound are made
  8. the tiny particle that makes up all substances
Down
  1. the compound made from sodium and chlorine
  2. the name for group 1
  3. compound made from lithium,nitrogen & oxygen
  4. a substance made up of only one type of atom
  5. can be solid liquid or gas-on left of periodic table
  6. how to describe a chemical reaction
  7. new chemical substances made in chemical reaction
  8. a row in the periodic table

16 Clues: the name for group 1 • the name for group 7 • where compound are made • a list of all the elements • a row in the periodic table • a column in the periodic table • atoms of elements joined together • how to describe a chemical reaction • starting chemicals in a chemical reaction • the compound made from sodium and chlorine • compound made from lithium,nitrogen & oxygen • ...

Periodic table 2024-05-02

Periodic table crossword puzzle
Across
  1. types of elements located on the right of the table, normally liquids or gasses
  2. vertical columns
  3. Side of the periodic table that nonmetals are located at
  4. metals in groups 3-12
  5. types of elements located on the left of the table, usually solids with the exception of mercury
  6. side of the periodic table that metals are located at
  7. types of elements located on the staircase, a mix between metal and nonmetal
Down
  1. also the number of protons in an atom
  2. group 17
  3. Increases as you approach the bottom left corner of the periodic table
  4. protons + neutrons
  5. group 18
  6. also known as the zigzag line, where metalloids are located
  7. the 1 or 2 letters on each key of the periodic table that helps to identify each element
  8. horizontal rows

15 Clues: group 17 • group 18 • horizontal rows • vertical columns • protons + neutrons • metals in groups 3-12 • also the number of protons in an atom • side of the periodic table that metals are located at • Side of the periodic table that nonmetals are located at • also known as the zigzag line, where metalloids are located • ...

thank u for letting me make this up 2022-12-05

thank u for letting me make this up crossword puzzle
Across
  1. elements with properties that fall between those of metals and nonmetals
  2. metals metals that form a bridge between elements on the left and right sides of the periodic table
  3. earth metals the elements in group 2A of the periodic table
  4. a column of elements in a periodic table
  5. mass unit (amu) one twelfth the mass of a carbon-2 atom
  6. gases the elements in group 8A of the periodic table
Down
  1. metals the elements in group A of the periodic table, not including hydrogen
  2. electron an electron that is in the highest occupied energy level of an atom
  3. law the pattern of repeating properties displayed by elements in the periodic table
  4. elements that are poor conductors of heat and electric current
  5. the elements in group 7A of the periodic table
  6. elements that are good conductors of heat and electric current

12 Clues: a column of elements in a periodic table • the elements in group 7A of the periodic table • gases the elements in group 8A of the periodic table • mass unit (amu) one twelfth the mass of a carbon-2 atom • earth metals the elements in group 2A of the periodic table • elements that are poor conductors of heat and electric current • ...

Periodic Table Crossword Puzzle 2022-01-20

Periodic Table Crossword Puzzle crossword puzzle
Across
  1. repeats at regular intervals
  2. dull, brittle elements that are poor conductors
  3. nonmetal that is liquid at STP in Group 17
  4. size of an ion
  5. metalloid in period 2
  6. vertical columns on the periodic table
  7. this element has the symbol Li
  8. lustrous, malleable elements that are good conductors
  9. having the same number of electrons or the same electron configuration
Down
  1. most reactive nonmetal
  2. consisting of two atoms
  3. measure of attraction of a nucleus in bonded electrons
  4. most metals on the periodic table are __________ metals
  5. horizontal rows on the periodic table
  6. only element in group 6 with three oxidation states
  7. size of a neutral atom
  8. element with an atomic mass of 40.08
  9. metal that is liquid at STP in Group 12
  10. element with an atomic number of one
  11. have properties of metals and nonmetals

20 Clues: size of an ion • metalloid in period 2 • most reactive nonmetal • size of a neutral atom • consisting of two atoms • repeats at regular intervals • this element has the symbol Li • element with an atomic mass of 40.08 • element with an atomic number of one • horizontal rows on the periodic table • vertical columns on the periodic table • metal that is liquid at STP in Group 12 • ...

Periodic Table: Crossword Puzzle 2012-06-06

Periodic Table: Crossword Puzzle crossword puzzle
Across
  1. The second group of the periodic table
  2. The person who created the periodic table in 1869 to show trends between elements
  3. The number of noble gases on the periodic table
  4. Description of the elements on the left side of the periodic table
  5. The element with an atomic number of 1
Down
  1. The first group of the periodic table
  2. Description of the elements on the right side of the periodic table
  3. increases from left to right and decreases from top to bottom
  4. The number of groups on the periodic table
  5. Radii from left to right and increases from top to bottom
  6. The number of periods there are on the periodic table

11 Clues: The first group of the periodic table • The second group of the periodic table • The element with an atomic number of 1 • The number of groups on the periodic table • The number of noble gases on the periodic table • The number of periods there are on the periodic table • Radii from left to right and increases from top to bottom • ...

Bonding 2023-11-09

Bonding crossword puzzle
Across
  1. How you can identify a substance (H2O)
  2. Elements to the right of the "Stair Case" on the periodic table
  3. The electrons on the outermost ring of an atom
  4. Elements in group 18 of the periodic table
  5. When 2 different elements come together or make a new compound
  6. Elements to the left of the "Stair Case" on the periodic table
Down
  1. When groups of atoms are held together with a chemical bond
  2. Rows going across the periodic table
  3. Columns going down the periodic table
  4. A particle that contains protons, neutrons, and electrons
  5. General force of attraction between 2 atoms or ions
  6. Electrons shared between atoms
  7. Electrons transferred between atoms
  8. When chemical bonds are formed or broken

14 Clues: Electrons shared between atoms • Electrons transferred between atoms • Rows going across the periodic table • Columns going down the periodic table • How you can identify a substance (H2O) • When chemical bonds are formed or broken • Elements in group 18 of the periodic table • The electrons on the outermost ring of an atom • ...

Periodic Table Vocabulary Crossword By:Helen X 2013-12-03

Periodic Table Vocabulary Crossword By:Helen X crossword puzzle
Across
  1. The number of Periods in the Periodic Table
  2. Smallest particle that has the property of an element
  3. Two or more elements make up these
  4. Another name for Metalliods
  5. The number of groups in the Periodic Table
  6. The number of protons in an element
  7. The group in between the Non Metals and Metals
  8. The group on the very right
  9. These things have a positive charge in an atom
  10. The name that Au stands for
  11. These things have no charge in an atom
  12. The group on the very left
Down
  1. Two or more of these equals a compound
  2. What is the symbol for the element Einsteinium
  3. Atoms having the same number of protons but not Neutrons
  4. A abbreviation for the name of the element
  5. The number of protons and neutrons in an element
  6. The numbers across the top of the Periodic Table
  7. These things have a negative charge
  8. There are seven of these things in the Periodic Table

20 Clues: The group on the very left • Another name for Metalliods • The group on the very right • The name that Au stands for • Two or more elements make up these • The number of protons in an element • These things have a negative charge • Two or more of these equals a compound • These things have no charge in an atom • A abbreviation for the name of the element • ...

The Periodic Table 2021-02-08

The Periodic Table crossword puzzle
Across
  1. has the atomic symbol Pb
  2. consist of lithium, sodium, potassium, etc.
  3. is apart of the noble gases and has the atomic number 222
  4. has the atomic number 18
  5. used to blow up balloons
  6. has the atomic symbol Fe
  7. has an atomic weight of 118.71
  8. consists of helium, argon, xenon, etc.
  9. apart of the alkaline earth metals
  10. invented the periodic table
  11. in the middle part of the periodic table
  12. has the atomic weight 28.0855
Down
  1. a column of elements on the periodic table
  2. has the atomic number 27
  3. consist of calcium and magnesium
  4. a horizontal row of the periodic table
  5. has the atomic number 35
  6. has the atomic number 13
  7. has the atomic number 47
  8. is used to make fluorescent signs
  9. has the symbol Au
  10. is in period 2
  11. the complete transfer of valence electrons
  12. has the atomic weight of 35.45
  13. the sharing of electrons
  14. has the atomic symbol K

26 Clues: is in period 2 • has the symbol Au • has the atomic symbol K • has the atomic number 27 • has the atomic symbol Pb • has the atomic number 35 • has the atomic number 13 • has the atomic number 47 • has the atomic number 18 • used to blow up balloons • has the atomic symbol Fe • the sharing of electrons • invented the periodic table • has the atomic weight 28.0855 • ...

Periodic Table of Elements Crossword 2023-02-23

Periodic Table of Elements Crossword crossword puzzle
Across
  1. What element has the atomic number 82 on the periodic table?
  2. Which direction does atomic radius increase?
  3. What is the second most reactive element in alkali metals?
  4. What element has the least electron shells?
  5. Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Astertine
  6. Atoms attract electrons towards itself
  7. Element organisms need to survive
  8. What material makes up most of the periodic table?
  9. What element is the heaviest?
Down
  1. What represents the number of valence electrons on an atom?
  2. What element has the largest atomic radius?
  3. What is the name of the 18th column in the periodic table?
  4. What is the most reactive element in the Halogens?
  5. What is the element with the lowest boiling point?
  6. What element has the atomic number 38?
  7. Who proposed the idea of the periodic table?
  8. What is the name of the metals in column one?
  9. What element has the highest boiling point?
  10. Which direction does atomic radius decrease?
  11. What represents the number of shells on an atom?

20 Clues: What element is the heaviest? • Element organisms need to survive • What element has the atomic number 38? • Atoms attract electrons towards itself • What element has the largest atomic radius? • What element has the least electron shells? • What element has the highest boiling point? • Which direction does atomic radius increase? • ...

The Periodic Table 2025-02-23

The Periodic Table crossword puzzle
Across
  1. has the atomic symbol Pb
  2. consist of lithium, sodium, potassium, etc.
  3. is apart of the noble gases and has the atomic number 222
  4. has the atomic number 18
  5. used to blow up balloons
  6. has the atomic symbol Fe
  7. has an atomic weight of 118.71
  8. consists of helium, argon, xenon, etc.
  9. apart of the alkaline earth metals
  10. invented the periodic table
  11. in the middle part of the periodic table
  12. has the atomic weight 28.0855
Down
  1. a column of elements on the periodic table
  2. has the atomic number 27
  3. consist of calcium and magnesium
  4. a horizontal row of the periodic table
  5. has the atomic number 35
  6. has the atomic number 13
  7. has the atomic number 47
  8. is used to make fluorescent signs
  9. has the symbol Au
  10. is in period 2
  11. the complete transfer of valence electrons
  12. has the atomic weight of 35.45
  13. the sharing of electrons
  14. has the atomic symbol K

26 Clues: is in period 2 • has the symbol Au • has the atomic symbol K • has the atomic number 27 • has the atomic symbol Pb • has the atomic number 35 • has the atomic number 13 • has the atomic number 47 • has the atomic number 18 • used to blow up balloons • has the atomic symbol Fe • the sharing of electrons • invented the periodic table • has the atomic weight 28.0855 • ...

Periodic Table Crossword Puzzle 2023-10-13

Periodic Table Crossword Puzzle crossword puzzle
Across
  1. Elements in period seven have how many shells?
  2. Group One is filled with which type of metals?
  3. The atomic number is the number of what subatomic particle?
  4. What is the name of the elements in group 17?
  5. What subatomic particle determines the reactivity of an atom?
  6. The columns of the periodic table are called?
  7. The rows of the periodic table are called?
  8. What element has the highest atomic radius?
Down
  1. First element on the periodic table?
  2. All elements in a row have the same number of electron _____?
  3. Elements in the same group have similar?
  4. The electrons on the outermost ring are called _____ electrons.
  5. Scientist who created the periodic table?
  6. The D block is filled with which type of metals?
  7. Protons and ______ make up the mass of an atom.
  8. How many valence electrons does group 14 have?
  9. Elements in group 18 are called _______ gases.
  10. Noble ______ are the least reactive.
  11. What is the symbol of silicon
  12. Atomic mass is measured in what?

20 Clues: What is the symbol of silicon • Atomic mass is measured in what? • First element on the periodic table? • Noble ______ are the least reactive. • Elements in the same group have similar? • Scientist who created the periodic table? • The rows of the periodic table are called? • What element has the highest atomic radius? • What is the name of the elements in group 17? • ...

Acids and Bases 2022-06-17

Acids and Bases crossword puzzle
Across
  1. Product of acid-base reaction
  2. Type of collision needed for a reaction
  3. Particle in nucleus of an atom
  4. Liquid made during neutralisation reactions
  5. pH of a neutral substance
  6. These have no overall charge
  7. Gas made when carbonates react
  8. Present in all bases
  9. Found on the RHS of periodic table
  10. Number of protons in an atom
  11. Another name for a positive ion
  12. Used to determine if a gas is Hydrogen
  13. Number of neutrons and protons
Down
  1. This speeds up a reaction but is not involved
  2. Present in all acids
  3. Vertical Columns on periodic table
  4. Found on the LHS of periodic table
  5. This gives particles more kinetic energy
  6. Made when atoms join together
  7. Particle found outside of the nucleus
  8. Factor affecting rates of reaction
  9. Shows a full rainbow pH scale
  10. Another name for a negative ion
  11. Horizontal rows on periodic table
  12. Particle found in nucleus of an atom

25 Clues: Present in all acids • Present in all bases • pH of a neutral substance • These have no overall charge • Number of protons in an atom • Product of acid-base reaction • Made when atoms join together • Shows a full rainbow pH scale • Particle in nucleus of an atom • Gas made when carbonates react • Number of neutrons and protons • Another name for a negative ion • ...

Periodic Table: Crossword Puzzle 2012-06-06

Periodic Table: Crossword Puzzle crossword puzzle
Across
  1. Description of the elements on the left side of the periodic table
  2. The number of groups on the periodic table
  3. increases from left to right and decreases from top to bottom
  4. Description of the elements on the right side of the periodic table
  5. The number of noble gases on the periodic table
Down
  1. Radii from left to right and increases from top to bottom
  2. The first group of the periodic table
  3. The element with an atomic number of 1
  4. The person who created the periodic table in 1869 to show trends between elements
  5. The second group of the periodic table
  6. The number of periods there are on the periodic table

11 Clues: The first group of the periodic table • The element with an atomic number of 1 • The second group of the periodic table • The number of groups on the periodic table • The number of noble gases on the periodic table • The number of periods there are on the periodic table • Radii from left to right and increases from top to bottom • ...

Periodic Table Trends Game 2023-01-10

Periodic Table Trends Game crossword puzzle
Across
  1. number of protons
  2. The reactivity of metals
  3. attraction of the nucleus and electrons and repulsion of electrons.
  4. the tendency of an atom to lose electrons.
  5. Vertical line on periodic table.
Down
  1. distance from nucleus to outermost electron.
  2. the tendency of an atom to attract electrons towards itself
  3. located mainly at the middle of the periodic table.
  4. Located on periodic table staircase.
  5. Located mainly top right of periodic table.
  6. energy needed to remove a electron from a isolated atom.
  7. Horizontal line on periodic table

12 Clues: number of protons • The reactivity of metals • Vertical line on periodic table. • Horizontal line on periodic table • Located on periodic table staircase. • the tendency of an atom to lose electrons. • Located mainly top right of periodic table. • distance from nucleus to outermost electron. • located mainly at the middle of the periodic table. • ...

Atomic crossword 2015-10-03

Atomic crossword crossword puzzle
Across
  1. the building blocks of the universe
  2. group 18 on the periodic table
  3. Elements 57-71
  4. Aka rows
  5. The setup of electrons
  6. transfer of valence electrons
  7. name of elements in the middle
  8. An element with more/less neutrons
  9. current model of atom
  10. The centre of an atom
  11. number of protons plus electrons
  12. the last shell in the electron config.
  13. AKA columns in the periodic table
Down
  1. 2 bonded elements
  2. Subatomic particle circling the atom
  3. The charged state of an atom
  4. Elements 89-103
  5. electrons in the last electron shell
  6. elements with mixtures of metals and non metals
  7. Group 1 of the periodic table
  8. a particle carrying light
  9. State without charge
  10. Subatomic particle with no charge
  11. number of protons
  12. positively charged ion
  13. A negatively charged ion
  14. an atom with more/less electrons
  15. The space around an atom that electrons travel in
  16. simplest form of a substance
  17. Group 17 in Periodic table

30 Clues: Aka rows • Elements 57-71 • Elements 89-103 • 2 bonded elements • number of protons • State without charge • current model of atom • The centre of an atom • The setup of electrons • positively charged ion • A negatively charged ion • a particle carrying light • Group 17 in Periodic table • The charged state of an atom • simplest form of a substance • Group 1 of the periodic table • ...

VOCABULARY IN CHEMISTRY 2023-05-15

VOCABULARY IN CHEMISTRY crossword puzzle
Across
  1. Unit for the amount of substance
  2. Energy that needs to have a molecule to react
  3. Type of element in the last group of the periodic table
  4. Chemical property that describes the tendency of an atom or a functional group to attract electrons toward itself.
  5. Ion with positive charge
  6. Fist part of the chemical reaction
  7. Is the mass that appears in the periodic table.
  8. Negative particle of the atom
  9. Is the number of protons of an atom.
  10. Neutral particle of the atom
Down
  1. Last part of the chemical reaction
  2. The conditions in which a gas occupies 22.7L at 25C and 1 atm.
  3. An atom with charge is called...
  4. Ion with negative charge
  5. Part of chemistry that studies changes in a chemical reaction
  6. Type of elements in the right side of the periodic table
  7. Process that involves rearrangement of atoms
  8. Type of elements in the left side of the periodic table
  9. Positive particle of the atom
  10. Unit to measure mass
  11. Element with symbol Cd

21 Clues: Unit to measure mass • Element with symbol Cd • Ion with negative charge • Ion with positive charge • Neutral particle of the atom • Positive particle of the atom • Negative particle of the atom • Unit for the amount of substance • An atom with charge is called... • Last part of the chemical reaction • Fist part of the chemical reaction • Is the number of protons of an atom. • ...

Chapter 6 2014-04-22

Chapter 6 crossword puzzle
Across
  1. the type of alkali metals in group 2A on the periodic table
  2. this type of energy is the energy required to remove an electron from an atom
  3. this law states that when elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties
  4. an ion with a negative charge
  5. the ability of an atom of an element to attract electrons when the atom is in a compound
  6. this type of radius is one half of the distance between the nuclei of two atoms of the same element when the atoms are joined
  7. the type of element that has properties similar to metals and nonmetals
  8. the type of gases in group 8A on the periodic table that are sometimes called the inert gases because they rarely take part in a reaction
  9. an atom or group of atoms that has a positive or negative charge
Down
  1. the name for elements that display a wide range of physical and chemical properties in groups 1a through 7a
  2. the type of metal elements in group 1A on the periodic table
  3. an ion with a positive charge
  4. this type of transition metal appears below the main body of the periodic table
  5. the type of elements that are poor conductors of heat and electric current
  6. nonmetals in group 7A on the periodic table
  7. the atoms of this metal are displayed in the main body of the periodic table such as copper, silver, gold, iron
  8. the type of elements that are good conductors of heat and electric current

17 Clues: an ion with a positive charge • an ion with a negative charge • nonmetals in group 7A on the periodic table • the type of alkali metals in group 2A on the periodic table • the type of metal elements in group 1A on the periodic table • an atom or group of atoms that has a positive or negative charge • ...

Periodic Table Crossword 2024-05-03

Periodic Table Crossword crossword puzzle
Across
  1. Determines an element,positive charge
  2. Vertical rows on the periodic table
  3. Second most common element in humans
  4. Everything that makes up the universe
  5. Most common state of mater for non-metals
  6. Has 3 electrons
  7. NaCl
  8. The gases on the 18th group
  9. Element named after the creator of the periodic table
  10. Has a neutral charge
  11. Has 6 protons
Down
  1. 2 or more elements chemically combined
  2. Any metal in the first group
  3. CO2
  4. Humans need it to breathe
  5. The last name of our science teacher
  6. H2O
  7. Can change the charge of an atom negatively
  8. Horizontal rows on the periodic table
  9. most common type of atom

20 Clues: CO2 • H2O • NaCl • Has 6 protons • Has 3 electrons • Has a neutral charge • most common type of atom • Humans need it to breathe • The gases on the 18th group • Any metal in the first group • Vertical rows on the periodic table • Second most common element in humans • The last name of our science teacher • Determines an element,positive charge • Everything that makes up the universe • ...

Atomic structure, and Periodic table 2022-12-07

Atomic structure, and Periodic table crossword puzzle
Across
  1. 3 parts make it up
  2. found on the left side of the periodic table
  3. no charge in the nucleus
  4. can be made into wire
  5. easily breakable
  6. have properties of both metal and non-metals
  7. levels circle the protons and neutrons
  8. how an element changes to different things
  9. able to be bent or hammered into shapes
  10. in the nucleus positive charge
  11. not shiny
Down
  1. electrons determine the reactivity of an
  2. shiny object
  3. allows heat through
  4. negative charge very small
  5. found on the right side of the periodic table
  6. doesn't allow heat to pass
  7. everything in the periodic table
  8. has a atomic number of five
  9. air we breath

20 Clues: not shiny • shiny object • air we breath • easily breakable • 3 parts make it up • allows heat through • can be made into wire • no charge in the nucleus • negative charge very small • doesn't allow heat to pass • has a atomic number of five • in the nucleus positive charge • everything in the periodic table • levels circle the protons and neutrons • able to be bent or hammered into shapes • ...

Periodic Table 2019-11-29

Periodic Table crossword puzzle
Across
  1. Name for the vertical columns in the Periodic Table
  2. Alkali metals are stored in these to prevent reaction with air and water
  3. Pure substance containing only one type of atom
  4. Group of highly stable gases
  5. Reactivity as you go down the alkali metals
  6. Name of group 7 elements
  7. Reactivity as you go down group 7
  8. The most reactive halogen
  9. When are more reactive halogen replaces a less reactive halogen
  10. The type of property that includes color, smell, freezing point, boiling point, melting point, opacity, viscosity, and density
  11. Halogen which is solid at room temperature
  12. element which as properties of both metals and non-metals
Down
  1. Element used in photographic film
  2. Name of what you get when chlorine reacts with potassium
  3. Noble gas used when advertising
  4. Name of what you get when iron reacts with iodine
  5. Element used to disinfect swimming pools
  6. Noble gas used to fill the horizontal row in the periodic table
  7. Name for the rows in the Periodic Table

19 Clues: Name of group 7 elements • The most reactive halogen • Group of highly stable gases • Noble gas used when advertising • Element used in photographic film • Reactivity as you go down group 7 • Name for the rows in the Periodic Table • Element used to disinfect swimming pools • Halogen which is solid at room temperature • Reactivity as you go down the alkali metals • ...

Periodic Table 2018-01-04

Periodic Table crossword puzzle
Across
  1. family group 1 or 1A
  2. the elements that are usually poor conductors of heat and electricity
  3. a region in an atom where there is a high probability of finding electrons
  4. a negatively charged subatomic particle found in the energy level of an atom
  5. family group 17 or 7A
  6. family group 16 or 6A
  7. a vertical column of elements in the periodic table
  8. gas family group 18 or 8A
  9. a horizontal row of elements in the periodic table
Down
  1. the elements that are good conductors of heat and electricity
  2. earth metal family group 2 or 2A
  3. number the number of protons in the nucleus of an atom
  4. a neutral subatomic particle in the nucleus of an atom
  5. the center of an atom; made up of protons and neutrons
  6. an element that has properties of both a metal and nonmetal
  7. the smallest particle that has the properties of an element
  8. a positively charged subatomic particle in the nucleus of an atom
  9. law the properties of elements tend to repeat in a regular pattern when elements are arranged in order of increasing atomic number
  10. level any of the possible energies an electron may have in an atom

19 Clues: family group 1 or 1A • family group 17 or 7A • family group 16 or 6A • gas family group 18 or 8A • earth metal family group 2 or 2A • a horizontal row of elements in the periodic table • a vertical column of elements in the periodic table • number the number of protons in the nucleus of an atom • a neutral subatomic particle in the nucleus of an atom • ...

periodic table 2019-04-09

periodic table crossword puzzle
Across
  1. 10
  2. 14
  3. 9
  4. 2
  5. 17
  6. 4
  7. 19
  8. 1
  9. 18
  10. 3
  11. 6
  12. 11
Down
  1. 20
  2. 5
  3. 15
  4. 13
  5. 16
  6. 12
  7. 8

19 Clues: 5 • 9 • 2 • 4 • 8 • 1 • 3 • 6 • 20 • 15 • 10 • 13 • 14 • 16 • 17 • 12 • 19 • 18 • 11

Periodic Table 2012-10-28

Periodic Table crossword puzzle
Across
  1. i have 27 protons
  2. i am a gas that 35 protons
  3. my element symbol is Pb
  4. i have a atomic mass of 65.38
  5. i am a transition metal that has 46 protons
  6. i have 3 protons
  7. i am the liquid in a thermometer
  8. i have a atomic mass of 226
  9. i am the gas in a neon signs
  10. my element symbol is AuNpotassium i have a atomic number of 19
Down
  1. i have 18 protons
  2. my element symbol is Ag
  3. i have 22 protons
  4. i have two protons
  5. my atomic mass is 40.078
  6. i am the H in H2O
  7. i have 96 protons
  8. my element symbol is Fe
  9. my element symbol is Ni

19 Clues: i have 3 protons • i have 18 protons • i have 27 protons • i have 22 protons • i am the H in H2O • i have 96 protons • i have two protons • my element symbol is Ag • my element symbol is Pb • my element symbol is Fe • my element symbol is Ni • my atomic mass is 40.078 • i am a gas that 35 protons • i have a atomic mass of 226 • i am the gas in a neon signs • i have a atomic mass of 65.38 • ...

Periodic Table 2013-05-15

Periodic Table crossword puzzle
Across
  1. Only gas on the metal side of the periodic table
  2. Line that seperates the metals from non-metals
  3. Located on the right side of the zigzag line
  4. Example of a metal
  5. Bottom number
  6. Vertical rows
  7. Groups
  8. Table that holds the elements
  9. Side the metals are located
  10. Word above the atomic mass
  11. Number above the element symbol
  12. Horizontal row
  13. example of a nonmetal
Down
  1. Lettter above the element name
  2. Example of a metal
  3. Element on period 4 and family 13
  4. Elements in the same family have
  5. Side the nonmetals are located
  6. located on the left side of the zigzag line
  7. Holds an elements atomic mass, number, symbol, and name

20 Clues: Groups • Bottom number • Vertical rows • Horizontal row • Example of a metal • Example of a metal • example of a nonmetal • Word above the atomic mass • Side the metals are located • Table that holds the elements • Lettter above the element name • Side the nonmetals are located • Number above the element symbol • Elements in the same family have • Element on period 4 and family 13 • ...

Periodic Table 2023-10-29

Periodic Table crossword puzzle
Across
  1. My atomic number is 11
  2. I’m the most reactive and the most electronegative of all the elements
  3. I’m a subatomic particle with a positive charge
  4. My atomic number is 5
  5. my atomic number is 24
  6. I melt at 420 degrees Celsius
  7. My atomic weight is 183.84
  8. I’m the 8th most abundant metal in earths crust
  9. I’m an electron located on the outermost shell
Down
  1. I’m twice as strong as Aluminum
  2. I’m the most stable element
  3. My atomic number is 19
  4. I’m naturally antibacterial
  5. My atomic number is 78
  6. I’m the most reactive and the most electronegative of all the elements
  7. I’m the second most abundant metal on Earth
  8. Animals and plants require me for respiration
  9. I’m a metal that is liquid at room temperature
  10. I’m the lightest metal
  11. I’m named after mythical, death dealing goblins
  12. my atomic number is 10

21 Clues: My atomic number is 5 • My atomic number is 19 • My atomic number is 11 • My atomic number is 78 • my atomic number is 24 • I’m the lightest metal • my atomic number is 10 • My atomic weight is 183.84 • I’m the most stable element • I’m naturally antibacterial • I melt at 420 degrees Celsius • I’m twice as strong as Aluminum • I’m the second most abundant metal on Earth • ...

Periodic Table 2023-10-25

Periodic Table crossword puzzle
Across
  1. period 7 group 6
  2. what we need to breathe
  3. symbol is Au
  4. Atonic number 92
  5. The noble gas with the least mass
  6. has a neutral charge
  7. all living things have
  8. most reactive alkaline earth metal
  9. Most reactive in group 1
Down
  1. atomic weight of 47.867
  2. pairs with sodium to make salt
  3. Noble gas with weight 39.948
  4. Symbol is U
  5. Has weight 83.798
  6. Lots in Yellowstone
  7. symbol Cu
  8. used to be used in thermometers
  9. Period 4 row 4
  10. Salt
  11. Atomic number 27

20 Clues: Salt • symbol Cu • Symbol is U • symbol is Au • Period 4 row 4 • period 7 group 6 • Atonic number 92 • Atomic number 27 • Has weight 83.798 • Lots in Yellowstone • has a neutral charge • all living things have • atomic weight of 47.867 • what we need to breathe • Most reactive in group 1 • Noble gas with weight 39.948 • pairs with sodium to make salt • used to be used in thermometers • ...

periodic table 2024-02-13

periodic table crossword puzzle
Across
  1. An expression that shows the elements in a compound and the proportions of those elements.
  2. The averaged number of protons and neutrons in an element.
  3. The vertical columns on the periodic table
  4. The man-made or laboratory made elements on the periodic table.
  5. Forms of the same element that contain equal numbers of protons but different numbers of neutrons in the nucleus.
  6. Organizes all discovered elements into rows (periods) and columns (groups) according to increasing atomic number.
  7. The horizontal rows on the periodic table.
  8. The number of protons in an element.
  9. An atom or molecule with a net charge due to the loss or gain of one or more electrons.
Down
  1. The material involved in the change is structurally the same before and after the change.
  2. An element whose properties are between those of metals and solid nonmetals or semiconductors.
  3. A process that involves rearrangement of the molecular or ionic structure of a substance.
  4. The positively charged subatomic particles in the nucleus of an atom.
  5. A change of materials into another, new materials with different properties and one or more than one new substances are formed.
  6. Electron in the outer shell of an atom.
  7. Metals have a shiny appearance, are good conductors of heat and electricity, can be melted, are malleable and ductile.
  8. Made of one type of atom, cannot be separated
  9. The neutrally (no charge) subatomic particle in the nucleus of an atom.
  10. a type of chemical element that lacks the charistics of a metal

19 Clues: The number of protons in an element. • Electron in the outer shell of an atom. • The vertical columns on the periodic table • The horizontal rows on the periodic table. • Made of one type of atom, cannot be separated • The averaged number of protons and neutrons in an element. • The man-made or laboratory made elements on the periodic table. • ...

Periodic Table 2023-02-27

Periodic Table crossword puzzle
Across
  1. _________ are the electrons in the outermost shell, or energy level, of an atom.
  2. The ________ of a chemical element is a measure of the size of its atom, usually the mean or typical distance from the center of the nucleus to the outermost isolated electron.
  3. _______ are natural materials that do not produce heat or electricity and that are structurally brittle
  4. 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. _______, any of the six chemical elements that comprise Group 2
  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. Periodic ______ are specific patterns that are present in the periodic table that illustrate different aspects of a certain element.
Down
  1. In chemistry and atomic physics, an _______ may be thought of as an orbit followed by electrons around an atom's nucleus.
  2. ________, any of the six nonmetallic elements that constitute Group 17
  3. As its name implies, _______ is the act of emitting radiation spontaneously.
  4. ________ is a chemical property that describes the tendency of an atom or a functional group to attract electrons toward itself.
  5. The ________ of a substance is the temperature at which it changes state from solid to liquid.
  6. _______ is the ability of matter to combine chemically with other substances.
  7. The temperature at which a liquid boils and turns to vapor.
  8. ________, any of the six chemical elements that make up Group 1
  9. The _______ of an isotope and the relative isotopic mass refers to a certain specific isotope of an element.Density
  10. __________ is the name given to the set of chemical properties associated with elements that are metals.
  11. In chemistry, the _______ of an element is the measure of its combining capacity with other atoms when it forms chemical compounds or molecules
  12. As has been mentioned, March 1, 1869 is considered as the _______ of the Periodic Law.

19 Clues: The temperature at which a liquid boils and turns to vapor. • ________, any of the six chemical elements that make up Group 1 • _______, any of the six chemical elements that comprise Group 2 • ________, any of the six nonmetallic elements that constitute Group 17 • As its name implies, _______ is the act of emitting radiation spontaneously. • ...

Periodic Table 2024-05-10

Periodic Table crossword puzzle
Across
  1. Rhymes with Daddy
  2. Rhymes with Stalecks
  3. Rhymes with Ten scar
  4. Rhymes with Neeyo
  5. Rhymes with Ram yule
  6. Rhymes with Peath in
  7. Rhymes with On
  8. Rhymes with Stenrie
  9. Rhymes with Smelly clot
Down
  1. Rhymes with Racks
  2. Rhymes with Ste dy
  3. Rhymes with Slob
  4. Rhymes with Marth ya
  5. Rhymes with Nar ly
  6. Rhymes with Hen K
  7. Rhymes with Brolly
  8. Rhymes with Pen Bro
  9. Rhymes with Claspa
  10. Rhymes with Porch

19 Clues: Rhymes with On • Rhymes with Slob • Rhymes with Racks • Rhymes with Daddy • Rhymes with Hen K • Rhymes with Neeyo • Rhymes with Porch • Rhymes with Ste dy • Rhymes with Nar ly • Rhymes with Brolly • Rhymes with Claspa • Rhymes with Pen Bro • Rhymes with Stenrie • Rhymes with Stalecks • Rhymes with Marth ya • Rhymes with Ten scar • Rhymes with Ram yule • Rhymes with Peath in • Rhymes with Smelly clot

Periodic Table 2023-05-08

Periodic Table crossword puzzle
Across
  1. transfers heat
  2. positive charge
  3. transfer of heat though heated fluid
  4. left to right
  5. can bend
  6. atom with the same atomic number
  7. mass size of an atom
  8. a metal and nonmetal
Down
  1. zero charge
  2. mass and volume
  3. up and down
  4. does not conduct heat or electricity
  5. smallest unit of a compound
  6. the resistivity falls as its temperature
  7. smallest unit of an element
  8. a chemical that can't be broken down
  9. conducts heat and electricity
  10. 2 or more elements
  11. negative charge

19 Clues: can bend • zero charge • up and down • left to right • transfers heat • mass and volume • positive charge • negative charge • 2 or more elements • a metal and nonmetal • mass size of an atom • smallest unit of a compound • smallest unit of an element • conducts heat and electricity • atom with the same atomic number • does not conduct heat or electricity • transfer of heat though heated fluid • ...

Periodic Table 2023-08-29

Periodic Table crossword puzzle
Across
  1. shell The__ orbitals in the outermost shell of the atom.
  2. what makes the periodic tble really invaluble is ___
  3. The seven horizontal ros are called__
  4. have similar valence__ configurations.
  5. Each element has a unique atomic number-thats the number of__
  6. below the symbol is the full name of the elent and it__
  7. Nonmetal are generally NOT__
  8. You can predict a lot about chemical ___
Down
  1. Except for___ which are on the upper left
  2. Each row corresponds to a different__
  3. the elements in a group have similar chemical__
  4. Nonmetals are also not good___ of heat or electricty
  5. A vertical column of elements is called a__ or family
  6. The__ is the most powerful tool chemist use.
  7. ___ are found on the upper right of the periodic table
  8. Each element is represented by one___
  9. On a square above the chemical symbol is the__
  10. the elements that are found on either side are often called__
  11. On the peridoc table you can find out the___ of the chemical

19 Clues: Nonmetal are generally NOT__ • Each row corresponds to a different__ • The seven horizontal ros are called__ • Each element is represented by one___ • have similar valence__ configurations. • You can predict a lot about chemical ___ • Except for___ which are on the upper left • The__ is the most powerful tool chemist use. • On a square above the chemical symbol is the__ • ...

Periodic Table 2023-05-09

Periodic Table crossword puzzle
Across
  1. a substance having a finite activation energy (band gap) for electron conduction
  2. fixed distances from the nucleus of an atom where electrons may be found
  3. the basic unit of a chemical element
  4. an atom or a molecule that has a positive or negative electrical charge
  5. an ion with negative charge
  6. devised the periodic table
  7. an ion with positive charge
  8. the number of protons in each atom
  9. An element that is not a metal but that has some properties of metals
  10. A small, positively charged particle of matter found in the atoms of all elements
Down
  1. the electrons in the outermost shell, or energy level, of an atom
  2. a simple substance that cannot be broken down into smaller parts or changed into another substance
  3. an element that readily forms cations and has metallic bonds
  4. the quantity of matter contained in an atom of an element
  5. measure of its atomic mass/ atomic mass unit
  6. a horizontal row of the periodic table
  7. odorless, colorless, nonflammable, and monotonic gases that have low chemical reactivity
  8. A verticle column in the periodic table
  9. the particles in an atom that have a neutral charge

19 Clues: devised the periodic table • an ion with negative charge • an ion with positive charge • the number of protons in each atom • the basic unit of a chemical element • a horizontal row of the periodic table • A verticle column in the periodic table • measure of its atomic mass/ atomic mass unit • the particles in an atom that have a neutral charge • ...

Periodic Table 2024-09-18

Periodic Table crossword puzzle
Across
  1. only metal that is liquid at room temperature
  2. unreactive, inert elements
  3. noble gas that emits a blueish-purple light when electricity flows through it
  4. malleable, ductile, lustrous, good conductors
  5. nonmetals that are the most reactive
  6. reason for the reactivity of atoms
  7. metals that have high melting and boiling points
  8. metalloids are also called this because they conduct electricity, but not as well as metals
Down
  1. columns
  2. rows
  3. insulators, dull, poor conductors
  4. most reactive alkali metal
  5. the only thing the period helps us with
  6. metals that are the most reactive
  7. valence electrons of halogens
  8. halogens react with alkali metals to form these
  9. valence electrons of alkali metals
  10. noble gas in the second period
  11. stable amount of valence electrons for MOST elements

19 Clues: rows • columns • unreactive, inert elements • most reactive alkali metal • valence electrons of halogens • noble gas in the second period • insulators, dull, poor conductors • metals that are the most reactive • valence electrons of alkali metals • reason for the reactivity of atoms • nonmetals that are the most reactive • the only thing the period helps us with • ...

Periodic Table 2025-02-23

Periodic Table crossword puzzle
Across
  1. has the symbol Ag
  2. is the 33rd element
  3. is the 53rd element
  4. is the 22nd element
  5. is the 18th element
  6. is the 31st element
  7. is the 1st element
  8. is the 2nd element
  9. is the 47th element
Down
  1. has the Fe symbol
  2. is the 28th element
  3. is the 82nd element
  4. is the 19th element
  5. is the 7th element
  6. is the tenth element
  7. is the 106th element
  8. is the 16th element
  9. is the 11th element
  10. is the 80th element
  11. is the 8th element

20 Clues: has the Fe symbol • has the symbol Ag • is the 7th element • is the 8th element • is the 1st element • is the 2nd element • is the 28th element • is the 33rd element • is the 82nd element • is the 19th element • is the 53rd element • is the 22nd element • is the 18th element • is the 16th element • is the 11th element • is the 31st element • is the 80th element • is the 47th element • ...

Periodic Table 2024-11-19

Periodic Table crossword puzzle
Across
  1. Which direction does atomic radius decrease in the periodic table? (In between the two words put a dash)
  2. Which group contains the most reactive metals?
  3. Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶?
  4. Which element has the highest electronegativity in the periodic table?
  5. Which has a smaller radius: a positive ion or its neutral atom? (put a dash in between the two words)
  6. Which trend describes the increase in the ability of an atom to attract electrons as you move across a period?
  7. In which period would you find an element with the electron configuration 2s² 2p⁶? (put a dash in between the word period and the number)
  8. Which element has the highest first ionization energy in period 2?
  9. Which block contains the transition metals? (Put a dash in between the letter and the word block)
Down
  1. Which block contains the alkali metals? (Put a dash in between the letter and the word block)
  2. Which element would have the electron configuration ending in 3p⁶?
  3. Which element has the largest atomic radius?
  4. What is the name of Group 17 in the periodic table?
  5. Which block contains the halogens? (Put a dash in between the letter and the word block)
  6. Which is larger: the atomic radius of chlorine (Cl) or the ionic radius of chloride ion (Cl⁻)? (put a dash in between the two words)
  7. Which element has the highest ionisation energy?
  8. How many periods are there in the periodic table?
  9. What group is known as the noble gases?
  10. Which is larger: the atomic radius of sodium (Na) or the ionic radius of sodium ion (Na⁺)? (put a dash in between the two words)
  11. Who is credited with creating the periodic table?

20 Clues: What group is known as the noble gases? • Which element has the largest atomic radius? • Which group contains the most reactive metals? • Which element has the highest ionisation energy? • How many periods are there in the periodic table? • Who is credited with creating the periodic table? • What is the name of Group 17 in the periodic table? • ...

Periodic Table 2025-01-09

Periodic Table crossword puzzle
Across
  1. H
  2. Co
  3. Br
  4. S
  5. C
  6. Ga
  7. Al
  8. Sr
  9. Ar
  10. Ne
  11. Y
Down
  1. B
  2. C
  3. He
  4. Ti
  5. Fe
  6. V
  7. Mn
  8. Cu
  9. Na

20 Clues: B • C • H • S • C • V • Y • He • Co • Ti • Br • Fe • Ga • Mn • Al • Cu • Sr • Na • Ar • Ne

Periodic table 2026-02-03

Periodic table crossword puzzle
Across
  1. matches
  2. valuable metal
  3. salt
  4. Bright gas
  5. heavy metal
  6. liquid element
  7. shiny metal
  8. Reactive metal
  9. soft metal
  10. Prevents rust
  11. radioactive
Down
  1. green gas
  2. rare metal
  3. purple solid
  4. Poison
  5. yellow solid
  6. light metal
  7. Light metal
  8. Breathing gas
  9. blue metal

20 Clues: salt • Poison • matches • green gas • rare metal • Bright gas • soft metal • blue metal • heavy metal • shiny metal • light metal • Light metal • radioactive • purple solid • yellow solid • Breathing gas • Prevents rust • valuable metal • liquid element • Reactive metal

Chapter 3&4 Vocaubulary 2023-09-06

Chapter 3&4 Vocaubulary crossword puzzle
Across
  1. The electrons that are in the highest energy level of an atom
  2. various metallic elements, found in the center of the periodic table groups 3-12
  3. chemical elements whose physical and chemical properties fall in between the metal and non-metal categories, group looks like a staircase on the periodic table
  4. group 2 on the periodic table, have 2 valence electrons
  5. a group of symbols that show the ratio of elements in a compound
  6. mixture made of two or more elements, at least one has to be a metal
  7. model of an atom that shows the chemical symbol surrounded by dots representing valence electrons
  8. attraction between positive metal ion and the electrons surrounding it
Down
  1. bond formed when two atoms share electrons
  2. all chemical bonds
  3. A gaseous chemical element that is very stable,do not chemically combine often because they have 8 valence electrons, group 18 on the periodic table.
  4. tell the ratio of elements in a compound
  5. elements on the right of the periodic table, not metallic, not malleable
  6. the attraction between two oppositely charged ions
  7. force of attraction that holds atoms together
  8. group 1 on the periodic table, very reactive, only have 1 valence electron

16 Clues: all chemical bonds • tell the ratio of elements in a compound • bond formed when two atoms share electrons • force of attraction that holds atoms together • the attraction between two oppositely charged ions • group 2 on the periodic table, have 2 valence electrons • The electrons that are in the highest energy level of an atom • ...

jackson and parkers crossword 2026-04-13

jackson and parkers crossword crossword puzzle
Across
  1. what is the seventh element in the periodic table of elements
  2. what is the fifth element in the periodic table of elements
  3. what is the first element in the periodic table
  4. what is the nineth element in the periodic table of elements
  5. what is the third element in the periodic table of elements
  6. what is the tenthq element in the periodic table of elements
Down
  1. what is the fourth element in the periodic table of elements
  2. what is the sixth element in the periodic table of elements
  3. what is the eighth element in the periodic table of elements
  4. what is the second element in the periodic table

10 Clues: what is the first element in the periodic table • what is the second element in the periodic table • what is the sixth element in the periodic table of elements • what is the fifth element in the periodic table of elements • what is the third element in the periodic table of elements • what is the fourth element in the periodic table of elements • ...

Chemistry Crossword 2020-12-17

Chemistry Crossword crossword puzzle
Across
  1. discovered the nucleus using the Gold Foil Experiment
  2. columns on a periodic table
  3. smallest part of a covalent bond
  4. free electrons that are able to bond with any atom that surrounds it
  5. combination of two or more substances that can be seperated through physical means
  6. identified the neutron
  7. ion with a positive charge
  8. ion with a negative charge
  9. ability to attract electrons
  10. solid formed from two solutions
  11. made atomic theory
Down
  1. rows on a periodic table
  2. two or more elements that are bonded chemically
  3. means of seperating a mixture by trapping larger particles on a piece of paper
  4. chemical reaction where energy is absorbed
  5. means of seperating a mixture by using boiling points
  6. the same element with different masses
  7. bond caused by Attraction between a positve ion and negative ion
  8. arranged the periodic table by atomic # instead of by mass
  9. first person to come up with accepted periodic table

20 Clues: made atomic theory • identified the neutron • rows on a periodic table • ion with a positive charge • ion with a negative charge • columns on a periodic table • ability to attract electrons • solid formed from two solutions • smallest part of a covalent bond • the same element with different masses • chemical reaction where energy is absorbed • ...

ELEMENTS 2023-04-27

ELEMENTS crossword puzzle
Across
  1. Only metal that is liquid at room temperature
  2. Particle with a positive charge that changes the identity and mass of an element
  3. ELement that is necessary for strong bones
  4. Particle with negative charge that changes an elements charge, not mass
  5. Right side of stair step on periodic table, and hydrogen
  6. A substance that has no fixed size or shape
  7. ELement used in batteries and helps with bipolar
  8. Left of stair step on periodic table not including hydrogen
  9. Rows across periodic table
Down
  1. Columns (up/down) on periodic table
  2. A bond with a metal and a metal
  3. substance with 2 or more combined elements
  4. An ion with a negative charge
  5. A bond with a metal and a non metal
  6. A substance in which all particles are alike
  7. Element found in high levels in bananas
  8. Particle with a neutral charge that changes an elements mass
  9. Mostly extracted from sea water
  10. An atom with a positive charge
  11. Element in group 14 period 2

20 Clues: Rows across periodic table • Element in group 14 period 2 • An ion with a negative charge • An atom with a positive charge • A bond with a metal and a metal • Mostly extracted from sea water • Columns (up/down) on periodic table • A bond with a metal and a non metal • Element found in high levels in bananas • substance with 2 or more combined elements • ...

Final Exam Review 2023-05-05

Final Exam Review crossword puzzle
Across
  1. Horizontal rows on the periodic table
  2. Avogadro's number (6.02 x 10^23) of anything
  3. The substance that gets dissolved
  4. Electrons in the atom's outermost energy level
  5. Ability of an atom to attract electrons
  6. Group 1 on the periodic table
  7. Group 17 on the periodic table
  8. PV=nRT
  9. Charged molecule that contains more than one atom
  10. Forms between two molecules where there is a transfer of electrons
Down
  1. An insoluble solid that emerges from a liquid solution
  2. Group 2 on the periodic table
  3. The average kinetic energy of the particles that make up an object
  4. The state of a compound (solid, liquid, gas)
  5. One reactant breaking down into two or more products
  6. Protons plus neutrons
  7. Atoms strive to achieve a full set of electrons (8)
  8. A process that gives off heat
  9. universal solvent
  10. Two nonmetals sharing electrons
  11. The liquid that does the dissolving
  12. A process that absorbs heat
  13. Located in the nucleus; no electrical charge

23 Clues: PV=nRT • universal solvent • Protons plus neutrons • A process that absorbs heat • Group 2 on the periodic table • A process that gives off heat • Group 1 on the periodic table • Group 17 on the periodic table • Two nonmetals sharing electrons • The substance that gets dissolved • The liquid that does the dissolving • Horizontal rows on the periodic table • ...

Chemistry Extra Credit 2025-03-28

Chemistry Extra Credit crossword puzzle
Across
  1. group 1 on periodic table
  2. neutral subatomic particle
  3. A chemical bond formed when two atoms share two
  4. A bond between atoms or ions that allows molecules to form
  5. the basic unit of a chemical element.
  6. negatively charged ion
  7. able to be hammered or pressed permanently out of shape without breaking or cracking.
  8. a thing that is composed of two or more separate elements; a mixture.
  9. positive subatomic particle
Down
  1. all of the atoms (or ions) are arranged in a regular grid pattern
  2. dissolved in water
  3. forms of the same element that contain equal numbers of protons but different numbers of neutrons
  4. a part or aspect of something abstract, especially one that is essential or characteristic
  5. group 2 on periodic table
  6. positively charged ion
  7. When a compound combines with oxygen gas to form water,
  8. group 17 on periodic table
  9. and carbon dioxide
  10. negative subatomic particle
  11. group 18 on periodic table

20 Clues: dissolved in water • and carbon dioxide • positively charged ion • negatively charged ion • group 1 on periodic table • group 2 on periodic table • neutral subatomic particle • group 17 on periodic table • group 18 on periodic table • negative subatomic particle • positive subatomic particle • the basic unit of a chemical element. • A chemical bond formed when two atoms share two • ...

henrys chapter 5 crossword 2014-06-12

henrys chapter 5 crossword crossword puzzle
Across
  1. property/ a description of what s substance does as it changes into one or more new substances
  2. property/ a description of a substance that does not involve forming a new substance
  3. a negatively charged ion
  4. a compound that separates into ions when it dissolves in water, producing a solution that conducts electricity
  5. a column of elements in the periodic table
  6. earth metals/ the elements in the second column of the periodic table
  7. bond/ a bond that results from the sharing of outer electrons between non-metal atoms
  8. gases/ the element in the eighteenth column of the periodic table
Down
  1. metals/ the elements in the first column of the periodic table
  2. molecule/ a molecule consisting of only 2 atoms of eather the same or different elements
  3. the elements in the seventeenth column of the periodic table
  4. a row of elements in the periodic table
  5. a particle in which atoms are joined by covalent bonds
  6. ion/ an ion made up of more than one atom that acts as a single particle
  7. a charged particle that results when an atom gains or loses one or more electrons
  8. a positively charged ion

16 Clues: a negatively charged ion • a positively charged ion • a row of elements in the periodic table • a column of elements in the periodic table • a particle in which atoms are joined by covalent bonds • the elements in the seventeenth column of the periodic table • metals/ the elements in the first column of the periodic table • ...

PT crossword 2023-10-06

PT crossword crossword puzzle
Across
  1. T/F: Noble Gases are very reactive
  2. What element is found in group 1 and period 7 of the periodic table?
  3. The amount of energy added to excite an electron
  4. The electrons located in the outermost energy level of an atom
  5. The distance from the center of the nucleus to the outermost energy level of an atom
  6. The rows of the periodic table
  7. How many periods are there on the periodic table?
  8. The columns of the Periodic Table
  9. The area or region in which an electron is most likely to be found
  10. What's the most amount of electrons an orbital can have?
Down
  1. S,P,D,F,G are examples of ________
  2. Areas around the nucleus that contain electrons
  3. How strongly an atom attracts a pair of electrons to itself when bonded with another atom
  4. Energy levels are represented by…
  5. T/F: Halogens are all nonmetals
  6. Is magnesium a metal, metalloid, or nonmetal?
  7. What scientist described atoms as having a nucleus surrounded by an electron cloud?
  8. An atom that has lost or gained one or more electrons
  9. Quantum of light energy released by the electron
  10. What periodic group is Argon part of?

20 Clues: The rows of the periodic table • T/F: Halogens are all nonmetals • Energy levels are represented by… • The columns of the Periodic Table • S,P,D,F,G are examples of ________ • T/F: Noble Gases are very reactive • What periodic group is Argon part of? • Is magnesium a metal, metalloid, or nonmetal? • Areas around the nucleus that contain electrons • ...

The Periodic Table 2026-04-21

The Periodic Table crossword puzzle
Across
  1. - Element showing catenation.
  2. - Moving left to right in the periodic table.
  3. - Energy to remove an electron from the outermost shell.
  4. - Forms acidic oxides.
  5. - Lightest element.
  6. - Energy released on addition of an electron.
  7. - Non-metal with highest electronegativity.
  8. - Group 1 elements.
  9. - Forms basic oxides.
  10. - Softest metal.
  11. - Salt formers.
Down
  1. - Moving top to down in a periodic table.
  2. - Green coloured gas.
  3. - Lightest noble gas.
  4. - Group 2 elements.
  5. - Periodic property of elements.
  6. - Least reactive elements.
  7. - Measure of ability to attract a shared pair of electrons.
  8. - Regular change in the periodic properties of elements.
  9. - Mass of an atom.

20 Clues: - Salt formers. • - Softest metal. • - Mass of an atom. • - Group 2 elements. • - Lightest element. • - Group 1 elements. • - Green coloured gas. • - Lightest noble gas. • - Forms basic oxides. • - Forms acidic oxides. • - Least reactive elements. • - Element showing catenation. • - Periodic property of elements. • - Moving top to down in a periodic table. • ...

Periodic table 2024-05-02

Periodic table crossword puzzle
Across
  1. types of elements located on the right of the table, normally liquids or gasses
  2. vertical columns
  3. Side of the periodic table that nonmetals are located at
  4. metals in groups 3-12
  5. types of elements located on the left of the table, usually solids with the exception of mercury
  6. side of the periodic table that metals are located at
  7. types of elements located on the staircase, a mix between metal and nonmetal
Down
  1. also the number of protons in an atom
  2. group 17
  3. Increases as you approach the bottom left corner of the periodic table
  4. protons + neutrons
  5. group 18
  6. also known as the zigzag line, where metalloids are located
  7. the 1 or 2 letters on each key of the periodic table that helps to identify each element
  8. horizontal rows

15 Clues: group 17 • group 18 • horizontal rows • vertical columns • protons + neutrons • metals in groups 3-12 • also the number of protons in an atom • side of the periodic table that metals are located at • Side of the periodic table that nonmetals are located at • also known as the zigzag line, where metalloids are located • ...

Arundhati’s Periodic crossword table 2022-03-22

Arundhati’s Periodic crossword table crossword puzzle
Across
  1. an atom found in group 2
  2. element in group 2, period 4
  3. elements found in groups 3-12 of the periodic table
  4. diagram representing the arrangement of electron shells in an atom
  5. a positively charged ion
  6. electrons that can move between atoms easily
  7. elements on the right-hand side of the periodic table
  8. a substance made up of only one type of atom
  9. number of protons in an atom
  10. has an atomic number of 2
  11. creator of the periodic table framework in 1869
  12. a small group of elements with properties that are a mix of metals and nonmetals
  13. subdivision of electron shells separated by electron orbitals
  14. arrangement of elements according to their atomic number
Down
  1. where elements can be found
  2. an atom found in group 1
  3. Element with a mass number of 6.941 u
  4. Gaseous elements found in group 18 of the periodic table
  5. a negatively charged ion
  6. bonds formed by two or more shared atoms
  7. elements on the left-hand side of the periodic table
  8. electrons arranged in each shell surrounding an atom
  9. The outermost shell in an atom
  10. the use of individual atoms to create structures
  11. sum of protons and neutrons of an atom
  12. elements listed horizontally
  13. Molecules formed by anions and cations
  14. representation of atoms in a series of shells around the atomic nucleus
  15. group of elements found in group 17
  16. elements listed vertically

30 Clues: an atom found in group 1 • a negatively charged ion • an atom found in group 2 • a positively charged ion • has an atomic number of 2 • elements listed vertically • where elements can be found • element in group 2, period 4 • elements listed horizontally • number of protons in an atom • The outermost shell in an atom • group of elements found in group 17 • ...

Arundhati’s Periodic crossword table 2022-03-22

Arundhati’s Periodic crossword table crossword puzzle
Across
  1. a small group of elements with properties that are a mix of metals and nonmetals
  2. Molecules formed by anions and cations
  3. Element with a mass number of 6.941 u
  4. a negatively charged ion
  5. subdivision of electron shells separated by electron orbitals
  6. element in group 2, period 4
  7. the use of individual atoms to create structures
  8. elements on the right-hand side of the periodic table
  9. electrons that can move between atoms easily
  10. elements listed horizontally
  11. representation of atoms in a series of shells around the atomic nucleus
  12. The outermost shell in an atom
  13. creator of the periodic table framework in 1869
  14. a positively charged ion
  15. group of elements found in group 17
  16. where elements can be found
  17. sum of protons and neutrons of an atom
  18. an atom found in group 2
Down
  1. electrons arranged in each shell surrounding an atom
  2. number of protons in an atom
  3. elements listed vertically
  4. an atom found in group 1
  5. elements on the left-hand side of the periodic table
  6. arrangement of carbon atoms
  7. elements found in groups 3-12 of the periodic table
  8. has an atomic number of 2
  9. a substance made up of only one type of atom
  10. arrangement of elements according to their atomic number
  11. diagram representing the arrangement of electron shells in an atom
  12. Gaseous elements found in group 18 of the periodic table
  13. bonds formed by two or more shared atoms

31 Clues: an atom found in group 1 • a negatively charged ion • a positively charged ion • an atom found in group 2 • has an atomic number of 2 • elements listed vertically • arrangement of carbon atoms • where elements can be found • number of protons in an atom • element in group 2, period 4 • elements listed horizontally • The outermost shell in an atom • group of elements found in group 17 • ...

Periodic Table Crossword 2024-09-13

Periodic Table Crossword crossword puzzle
Across
  1. Certain elements that are usually poor conductors of heat and electricity
  2. An atom that has gained, or lost, one or more electrons
  3. A group of elements within the Periodic Table that have similar chemical properties
  4. The term to define something that cannot undergo a chemical change
  5. The properties of elements, that when arranged in order of increasing atomic number, repeats in a regular pattern
  6. A neutrally charged particle within the nucleus of an atom
  7. Electron An electron on the outer energy level in an atom
  8. The horizontal row of elements in the Periodic Table
  9. A certain area in the Periodic Table that contains certain elements that are between metals and nonmetals
  10. A negatively charged particle that resides in the energy levels in an atom
  11. The term to describe the number of protons in the nucleus of an atom
  12. Elements in the Periodic Table that are placed in Group 2A
  13. The tendency of an atom to attract electrons within a formation called an “Ionic Bond”
  14. The person who arranged the elements in order of increasing atomic number
Down
  1. A quantity equal to one-twelfth the mass of a carbon-12 atom
  2. The total number of protons and neutrons within the nucleus of an atom
  3. Elements that are in Group 1A, the far left side, of the Periodic Table (Does NOT include Hydrogen)
  4. Certain elements that are good conductors of heat and electricity
  5. A process of adding, or removing, electrons from an atom
  6. A Russian Chemist who created the first ever Periodic Table of Elements
  7. A positively charged particle within the nucleus of an atom
  8. The center of an atom (made up of protons and neutrons)
  9. An element in the Periodic Table that has both properties of a metal and non-metal
  10. The outer path where electrons move on (or revolve)
  11. Different levels that contain a certain number of electrons
  12. The smallest part of an element (can’t be broken down)
  13. The term to define something that can undergo a chemical change
  14. A vertical column of elements within the Periodic Table
  15. Any atoms that contain the same number of protons but a different number of neutrons
  16. The symbol for Atomic Mass Unit

30 Clues: The symbol for Atomic Mass Unit • The outer path where electrons move on (or revolve) • The horizontal row of elements in the Periodic Table • The smallest part of an element (can’t be broken down) • An atom that has gained, or lost, one or more electrons • The center of an atom (made up of protons and neutrons) • ...

Periodic Table 2013-04-24

Periodic Table crossword puzzle
Across
  1. element in period 4 group 9
  2. element symbol is Fe
  3. elements between alkali metals and transition metals
  4. element symbol is Au
  5. element in period 2 group 13
  6. element symbol is O
  7. element symbol is N
  8. elements between transition metals and noble gasses
  9. elements on the far left side of the periodic table
  10. element in the bottom right corner of the periodic table
Down
  1. atomic number is 2
  2. element group with full valence levels
  3. element in the bottom left corner of the periodic table
  4. element group between alkali earth metals and halogens
  5. the element under hydrogen
  6. atomic number is 1
  7. element under neon
  8. element symbol is N
  9. atomic number is 10
  10. element symbol is C

20 Clues: atomic number is 2 • atomic number is 1 • element under neon • element symbol is N • element symbol is O • atomic number is 10 • element symbol is N • element symbol is C • element symbol is Fe • element symbol is Au • the element under hydrogen • element in period 4 group 9 • element in period 2 group 13 • element group with full valence levels • ...

periodic table 2013-09-22

periodic table crossword puzzle
Across
  1. point/when a liquid freezes to a solid.
  2. particles/it is the mass of the atom.
  3. how an object looks,feels,or acts.
  4. smallest unit that makes up Everything.
  5. matter that turns liquid to solid.
  6. matter that turns liquid to gas.
  7. amount of space that matter occupies
Down
  1. point/when a solid melts.
  2. symbol/it is the symbol of the element.
  3. a negative charge.
  4. matter that is water.
  5. the middle of an atom.
  6. a neutral charge.
  7. smallest part of a substance.
  8. the table are called rows.
  9. a positive charge.
  10. the table are called groups.
  11. point/when a liquid turns to a gas
  12. something that takes up space.

19 Clues: a neutral charge. • a negative charge. • a positive charge. • matter that is water. • the middle of an atom. • point/when a solid melts. • the table are called rows. • the table are called groups. • smallest part of a substance. • something that takes up space. • matter that turns liquid to gas. • how an object looks,feels,or acts. • point/when a liquid turns to a gas • ...

Periodic Table 2018-01-04

Periodic Table crossword puzzle
Across
  1. the elements that are good conductors of heat and electricity
  2. the elements that are usually poor conductors of heat and electricity
  3. a vertical column of elements in the periodic table
  4. level any of the possible energies an electron may have in an atom
  5. gas family group 18 or 8A
  6. an element that has properties of both a metal and nonmetal
  7. a positively charged subatomic particle in the nucleus of an atom
  8. a region in an atom where there is a high probability of finding electrons
  9. a negatively charged subatomic particle found in the energy level of an atom
Down
  1. the center of an atom; made up of protons and neutrons
  2. number the number of protons in the nucleus of an atom
  3. earth metal family group 2 or 2A
  4. the smallest particle that has the properties of an element
  5. law the properties of elements tend to repeat in a regular pattern when elements are arranged in order of increasing atomic number
  6. family group 16 or 6A
  7. a neutral subatomic particle in the nucleus of an atom
  8. family group 17 or 7A
  9. family group 1 or 1A
  10. a horizontal row of elements in the periodic table

19 Clues: family group 1 or 1A • family group 16 or 6A • family group 17 or 7A • gas family group 18 or 8A • earth metal family group 2 or 2A • a horizontal row of elements in the periodic table • a vertical column of elements in the periodic table • the center of an atom; made up of protons and neutrons • number the number of protons in the nucleus of an atom • ...