The table below shows the nature of alpha particles and gamma rays:
| Radiation Type | Nature |
|---|---|
| Alpha (α\alphaα) | Helium nucleus |
| Gamma (γ\gammaγ) | High-frequency electromagnetic wave |
Explain why alpha particles and gamma rays have different penetrating powers.
65 exam-style questions on Edexcel IGCSE Physics Radioactivity. Each one has a worked solution and a mark scheme showing where the marks go.