Q21 / 170 · Manipal (MET) 2015 · Chemistry

${ }_{88}^{228} X-3 \alpha,-\beta \longrightarrow Y$. The element $Y$ is

  • A
    ${ }_{82}^{216} \mathrm{~Pb}$
  • B
    ${ }_{82}^{217} \mathrm{~Pb}$
  • C
    ${ }_{83}^{218} \mathrm{Bi}$
  • Correct answer
    D
    ${ }_{83}^{216} \mathrm{Bi}$

Solution

${ }_{88}^{228} X \xrightarrow{-3 \alpha}{ }_{82}^{216} \mathrm{~Pb} \xrightarrow{-\beta}{ }_{83}^{216} \mathrm{Bi}(Y)$

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

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