A) \[\beta -\] emission
B) \[\alpha -\] emission
C) \[{{\beta }^{+}}\] emission
D) K electron capture
Correct Answer: A
Solution :
\[n/p\]ratio of \[_{\text{13}}^{\text{24}}\text{Na =13/11}\] i.e., greater than unity. To achieve stability, it would tend to become unity. This can happen if n decreases or p increases. To do so, a neutron changes into proton and an electron (\[-\]particle) which is emitted. \[_{0}^{1}n\xrightarrow{{}}_{1}^{1}p{{+}_{-1}}{{e}^{0}}({{\beta }^{-}})\]
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