Physics 9702 · AS & A Level · Atoms, nuclei and radiation

Atoms, nuclei and radiation — practice question

In a nuclear physics experiment, a nucleus of $^{32}_{16}\text{S}$ strikes a nucleus of $^{94}_{42}\text{Mo}$. The two nuclei fuse and then instantly produce one alpha-particle. The nuclear reaction is shown below. $^{32}_{16}\text{S} + ^{94}_{42}\text{Mo} \rightarrow X + \alpha$ What is nucleus $X$?

  • A$^{122}_{56}X$
  • B$^{124}_{54}X$
  • C$^{126}_{58}X$
  • D$^{126}_{59}X$

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