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A radioactive atom \(\mathrm{X}_{\mathrm{Y}}\) emits two \(\alpha\) particles and one \(\beta\) particle successively. The number of neutrons in the nucleus of the product will be
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Verified Answer
The correct answer is:
\(\mathrm{X}-\mathrm{Y}-5\)
Hints: 
\(\begin{aligned}
\text { Number of neutrons } & =\text { Mass no. }- \text { Atomic no. } \\
& =\mathrm{X}-8-\mathrm{Y}+3 \\
& =\mathrm{X}-\mathrm{Y}-5
\end{aligned}\)
\(\begin{aligned}
\text { Number of neutrons } & =\text { Mass no. }- \text { Atomic no. } \\
& =\mathrm{X}-8-\mathrm{Y}+3 \\
& =\mathrm{X}-\mathrm{Y}-5
\end{aligned}\)
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