A detector records two successive emissions from an unstable nucleus.
| Emission order | Radiation emitted |
|---|---|
| 1 | alpha particle |
| 2 | neutron |
After both emissions, the remaining nucleus has a mass number of 213 and an atomic number of 83.
Calculate the mass number, atomic number and number of neutrons in the original nucleus.
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.