An unstable nucleus has a mass number of 38 and an atomic number of 19.
A detector records these measurements for the particle emitted when the nucleus decays.
| Measurement | Result |
|---|---|
| Mass number | 0 |
| Relative charge | +1 |
A technician predicts that the daughter nucleus has a mass number of 37 and an atomic number of 18.
Which particle is emitted?
Explain whether the technician's prediction is correct.
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.