Which type of radiation can pass through a sheet of paper but is stopped by a few millimetres of aluminium?
α\alphaα-particles
β\betaβ-particles
γ\gammaγ-rays
X-rays
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.