Question

If a heavy nucleus has $N/Z$ ratio higher than that required for stability, then

• A. It emits ${\beta }^{-}$
• B. It emits ${\beta }^{+}$
• C. It emits $\alpha$ particle
• D. It will undergo $K$ electron capture

Answer 1

Answer: (A)

If $\frac{N}{Z}$ ratio is higher it will try to increase number of protons by $\beta$ decay.