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

Atoms, nuclei and radiation — practice question

A neutron $^1_0\text{n}$ strikes a $^{{235}}_{{92}}\text{U}$ nucleus. The neutron is taken in by the nucleus, after which it splits into nuclei of $^{{141}}_{{56}}\text{Ba}$ and $^{{92}}_{{36}}\text{Kr}$. What is the number of free neutrons released when the $^{{235}}_{{92}}\text{U}$ nucleus splits?

  • A$0$
  • B$1$
  • C$2$
  • D$3$

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