A researcher has a sample of a radioactive substance. Suggest how she can determine whether the sample is emitting β\betaβ-particles and whether it is emitting γ\gammaγ-rays.
The table below lists properties of three main particles in an atom. Complete the table by identifying the missing relative charge and relative mass values.
| Particle | Relative Charge | Relative Mass |
|---|---|---|
| Proton | +1+1+1 | |
| Neutron | 111 | |
| Electron | −1-1−1 |
484 exam-style questions on CIE IGCSE Physics 5.2 Radioactivity, covering 5.2.1 Background radiation and measuring count rate, 5.2.2a Alpha, beta and gamma emission, 5.2.2b Deflection and ionising effects of nuclear radiation, 5.2.3a Radioactive decay, 5.2.3b Effects of decay on the nucleus and decay equations, 5.2.4a Half-life, 5.2.4b Choosing isotopes for applications, and 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.