CAPE Physics Unit 2 · 2007 · Paper 1 · Question Q45

A radioactive nuclide is represented by the symbol {}^{76}_{33}\text{P}. It decays into a nuclide of element Q by beta decay. Q then decays into a nuclide of element R by alpha decay and releases gamma radiation. What symbol represents nuclide R?

1. (A){}^{75}_{34}\text{R}
2. (B){}^{72}_{32}\text{R}
3. (C){}^{74}_{32}\text{R}
4. (D){}^{72}_{31}\text{R}