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

Atoms, nuclei and radiation — practice question

Plutonium-239 ($^{{239}}_{{94}}\text{Pu}$) undergoes decay by emitting $\alpha$-radiation. Which nuclide is produced in one of these decay processes? (The product nuclides are denoted by $X$.)

  • A$^{{235}}_{{92}}X$
  • B$^{{237}}_{{92}}X$
  • C$^{{239}}_{{93}}X$
  • D$^{{239}}_{{95}}X$

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