| __ | 1. | Anion | | A. | A positively charged ion |
| __ | 2. | Atom | | B. | A negatively charged ion |
| __ | 3. | Atomic mass | | C. | A process that involves rearrangement of molecular structure |
| __ | 4. | Cation | | D. | Each of the substances found on the periodic table |
| __ | 5. | Chemical reaction | | E. | The smallest part of a chemical element that can exist |
| __ | 6. | Compound | | F. | Total mass of protons in an atom |
| __ | 7. | Electron | | G. | A substance consisting of two or more elements |
| __ | 8. | Element | | H. | A negatively charged particle found in orbitals |
| __ | 9. | Isotope | | I. | Atoms of the same element with different mass numbers |
| __ | 10. | Law of conservation of Mass | | J. | Matter can't be created/destroyed during a chemical reaction |