Self Assessment Checklist
| Atomic Structure | I can do this! | |
| (a) | State the relative charges and approximate relative masses of a proton, a neutron and an electron. | |
| (b) | Describe, with the aid of diagrams, the structure of an atom as containing protons and neutrons (nucleons) in the nucleus and electrons arranged in shells (energy levels). | |
| (c) | Define proton (atomic) number and nucleon (mass) number. | |
| (d) | Interpret and use symbols that represent an element’s nucleon and proton numbers. | |
| (e) | Define the term isotopes. | |
| (f) | Deduce the numbers of protons, neutrons and electrons in atoms and ions. | |
