| A | B |
|---|
| Alpha particle | Made of two protons and two neutrons |
| Beta particle | Charge of - 1 and a mass of 1/1836 amu |
| Gamma ray | Radiation with no mass or charge |
| Geiger counter | Instument used to detect nuclear radiation |
| Half life | time required for one half of a radioactive sample to decay. |
| Strong force | Attractive force that binds protons and neutrons together in the nucleus. |
| Fission | Splitting of an atomic nucleus |
| Fusion | Nuclei of two atoms combine |
| Weak force | Associated with radioactive decay |
| Rad | Unit of absorbed energy |
| Rem | Unit of radiation dosage based on potential damage |
| Cloud chamber | Used to record a trail of radioactive transmutation |
| Nucleon | A nuclear proton or neutron |
