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Nuclear Stability

Which of the ...

Question

Which of the following nuclides is positron emitter ?

A

$H^{3}$

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B

$H^{e^{6}}$

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C

$B^{12}$

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D

$N^{13}$

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Solution

The correct option is D
$N^{13}$

$\frac{n}{p} (= \frac{6}{7}) f o r N^{13}$ is too small.

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