One particle is emitted when a parent nucleus decays. The table gives data for the parent nucleus and the daughter nucleus.
| Quantity | Parent nucleus | Daughter nucleus |
|---|---|---|
| mass number | 137 | 137 |
| charge number | 55 | 56 |
Explain how the data can be used to identify the particle emitted.
120 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay, covering 6.3.1 Beta-minus and beta-plus decay, 6.3.2 Effects of decay on the nucleus, and 6.3.3 Balancing nuclear equations. Each one has a worked solution and a mark scheme showing where the marks go.