Across
- 1. the arrangement of electrons is the orbitals of an atom or molecule
- 3. Area around the nucleus of an atom where the atom’s electrons are most likely to be found
- 9. A negatively charged ion
- 11. Charged particle that has either more or fewer electrons than protons
- 12. group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements
- 16. The smallest particle of an element that still retains the property of an element
- 17. Atoms of the same element that have different numbers of neutrons
- 19. element that typically is a hard shiny solid, is malleable and is a good conductor
- 20. Particle, composed of quarks, inside the nucleus of an atom that has a charge of 1+
- 22. the numbers in chemical formula that are slightly lowered down representing the numbers of atoms
- 24. a compound that contains two different elements
- 26. Particles surrounding the center of an atom that have a charge of 1-
- 28. Organized list of all known elements that are arranged by increasing atomic number and by changes in chemical and physical properties
- 31. an ion with a positive charge caused by a loss of electrons
- 35. a force that holds atoms together in a compound
- 36. A column of elements in the periodic table
Down
- 2. chemical shorthand that uses symbols to tell what elements are in a compound and their ratios
- 4. attraction formed between atoms when they share electrons
- 5. Weighted-average mass of the mixture of an element's isotopes
- 6. An outer shell electron that is associated with an atom
- 7. element that is typically gas or brittle solid at room temperature
- 8. A positively charged ion
- 10. compound that is composed of two elements
- 13. an ion with more electrons than protons
- 14. a group of atoms creating the smallest unit of compound
- 15. Neutral particle, inside the nucleus of an atom
- 18. vertical row in the periodic table
- 21. Positively charged center of an atom that contains protons and neutrons and is surrounded by a cloud of electrons
- 23. substance formed from two or more elements in which the exact combination and proportion of elements is always the same
- 25. element that shares some properties with metals and some with nonmetals
- 27. region of space, throughout which all physical properties of a material are essentially uniform
- 29. attraction formed between oppositely charged ions in an ionic compound
- 30. Number of protons in an atom's nucleus
- 32. Horizontal row in the periodic table
- 33. The general tendency of a set of data to change
- 34. Sum of the number of protons and neutrons in an atom's nucleus