Which statement about alpha, beta, and gamma radiation is not correct?
Alpha particles are more ionising than beta particles.
Beta-minus (β−\beta^-β−) particles are deflected towards the positive plate in an electric field.
Gamma radiation is deflected by a strong electric field.
Alpha particles are stopped by a few centimetres of air.
134 exam-style questions on CIE IGCSE Physics 5.2.2a Alpha, beta and gamma emission. Each one has a worked solution and a mark scheme showing where the marks go.