Define the half-life of a radioactive source.
A carbon (C\text{C}C) nucleus decays into a nitrogen (N\text{N}N) nucleus by the emission of a β\betaβ-particle.
Complete the nuclear equation for the decay.
614C→ ^{14}_{6}\text{C} \rightarrow 614C→State the change that occurs in the nucleus during this decay.
A different element decays by the emission of an alpha-particle (α\alphaα-particle).
Give two reasons why α\alphaα-particles are more strongly ionising than β\betaβ-particles.
120 exam-style questions on CIE IGCSE Physics 5.2.3a Radioactive decay. Each one has a worked solution and a mark scheme showing where the marks go.