Some atomic nuclei are unstable. An unstable nucleus gives out nuclear radiation as it changes to become more stable.
Describe what an alpha particle is made of.
Give the name of the type of nuclear radiation that is electromagnetic radiation from the nucleus.
Table shows the material needed to absorb each type of nuclear radiation.
Table: The material that absorbs each type of nuclear radiation
| Type of nuclear radiation | Material that absorbs the radiation |
|---|---|
| Alpha particle | |
| Beta particle | 3 mm of aluminium |
| Gamma ray |
Complete Table.
Give the unit of activity.
40 exam-style questions on AQA GCSE Physics 4.2 Atoms and nuclear radiation, covering 4.2.1 Radioactive decay and nuclear radiation, 4.2.2 Nuclear equations, 4.2.3 Half-lives and the random nature of radioactive decay, and 4.2.4 Radioactive contamination. Each one has a worked solution and a mark scheme showing where the marks go.