| __ | 1. | Anion | | A. | At the centre of an atom |
| __ | 2. | Atom | | B. | An atom with an overall - charge |
| __ | 3. | Cation | | C. | smallest copy of an element in a piece of matter |
| __ | 4. | Electron | | D. | An atom where the protons and electrons are unbalanced |
| __ | 5. | Electrons are found | | E. | An atom with an overall + charge |
| __ | 6. | Ion | | F. | A subatomic particle with a - charge |
| __ | 7. | Neutron | | G. | A subatomic particle with a + charge |
| __ | 8. | Nucleus | | H. | A subatomic particle with no charge |
| __ | 9. | Proton | | I. | in the nucleus |
| __ | 10. | Protons are found | | J. | orbiting the nucleus |