Sodium-24 is a radioactive isotope that decays by emitting a β−\beta^-β− particle.
Describe what happens to the nucleus of a sodium-24 atom when it emits a β−\beta^-β− particle.
90 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay. Each one has a worked solution and a mark scheme showing where the marks go.