CAPE Physics Unit 2 · 2008 (T&T) · Paper 1 · Question Q45

Radioactive lead, ^{211}_{82}\text{Pb} decays by releasing two beta particles and one alpha particle. What is the resulting nuclide?

1. (A)^{203}_{82}\text{Pb}
2. (B)^{207}_{82}\text{Pb}
3. (C)^{211}_{84}\text{Po}
4. (D)^{207}_{84}\text{Po}