CAPE Physics Unit 2 · 2017 · Paper 1 · Question Q34

The equation which represents the radioactive change of a ^{60}_{27}\text{Co} nucleus by \beta-emission is

1. (A)^{60}_{27}\text{Co} \rightarrow {^0_1}\beta + {^{60}_{27}}\text{Ni}
2. (B)^{60}_{27}\text{Co} \rightarrow {^4_2}\beta + {^{60}_{28}}\text{Ni}
3. (C)^{60}_{27}\text{Co} \rightarrow {^0_{-1}}\beta + {^{60}_{26}}\text{Ni}
4. (D)^{60}_{27}\text{Co} \rightarrow {^0_{-1}}\beta + {^{60}_{28}}\text{Ni}