The maximum range of an alpha particle in air is about
5 mm5\text{ mm}5 mm
5 cm5\text{ cm}5 cm
5 m5\text{ m}5 m
50 m50\text{ m}50 m
65 exam-style questions on Edexcel IGCSE Physics Radioactivity. Each one has a worked solution and a mark scheme showing where the marks go.