A nucleus of 83212Bi^{212}_{83}\text{Bi}83212Bi decays into an isotope of polonium, which then decays into a nucleus of 82208Pb^{208}_{82}\text{Pb}82208Pb.
What types of radiation have been emitted during this process?
one alpha particle only
one alpha particle and one beta-minus particle
two alpha particles
two beta-minus particles
484 exam-style questions on CIE IGCSE Physics 5.2 Radioactivity, covering 5.2.1 Background radiation and measuring count rate, 5.2.2a Alpha, beta and gamma emission, 5.2.2b Deflection and ionising effects of nuclear radiation, 5.2.3a Radioactive decay, 5.2.3b Effects of decay on the nucleus and decay equations, 5.2.4a Half-life, 5.2.4b Choosing isotopes for applications, and 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.