Match the term with definitions by drawing a line between the two columns.
| Term | Description | |
| Fission | Negatively charged particle that orbits the nucleus | |
| Atomic Number | The total number of nuclear particles does not change | |
| Mass Number | When a nucleus is split into smaller pieces | |
| Fusion | The number of protons found in the nucleus | |
| Radioactive decay | Positively charged particle found in the nucleus | |
| Alpha particle | Neutral particle found in the nucleus | |
| Radiation | An element with the same atomic number but different mass number | |
| Isotope | When two atoms fuse to form a new element | |
| Nuclear conservation | The total number of neutrons plus protons | |
| Proton | When an atom spontaneously breaks up, releasing a particle or energy | |
| Neutron | Ionising high energy particles or electromagnetic radiation | |
| Electron | A helium nucleus with a +2 charge |