Q148 / 150 · MHT CET 2023 (13 May Shift 1) · Physics

An isotope of the original nucleus can be formed in a radioactive decay, with the emission of following particles.

  • A
    one $\alpha$ and one $\beta$
  • Correct answer
    B
    one $\alpha$ and two $\beta$
  • C
    one $\alpha$ and four $\beta$
  • D
    four $\alpha$ and one $\beta$

Solution

${ }_{\mathrm{Z}} \mathrm{X}^{\mathrm{A}} \stackrel{\alpha}{\longrightarrow}{ }_{\mathrm{Z}-2} \mathrm{Y}^{\mathrm{A}-4} \stackrel{2 \beta^{-}}{\longrightarrow}{ }_{\mathrm{Z}} \mathrm{X}^{\mathrm{A}-4}$

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

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