In the nuclear emission stated above, the mass number and atomic number of the product $Q$ respectively, are

• A

  286,80
• B

  288,82
• Correct answer
  C

  286,81
• D

  280, 81

Solution

$\begin{aligned} & A \rightarrow 286 \\ & Z=81\end{aligned}$

Hence, the correct answer is option: 'C'.