Physics (AS & A Level) · Oct / Nov 2020 · Paper 11 · Question 39

In a nuclear physics experiment, a nucleus of ^{32}_{16}S collides with a nucleus of ^{94}_{42}Mo. The nuclei combine together and immediately emit a single alpha-particle. The nuclear reaction is shown. ^{32}_{16}S + ^{94}_{42}Mo → X + α What is nucleus X?

1. A^{122}_{56}X
2. B^{124}_{54}X
3. C^{126}_{58}X
4. D^{126}_{59}X

As printed in the paper