Question

Which of the following nuclei shown in the graph is light and stable?

• A. $A$
• B. $B$
• C. $C$
• D. $D$

Answer 1

The correct option is D $D$


For light stable nuclides, the neutron number $\left(N\right)$ is equal to the proton number $\left(Z\right)$, so that the ratio $\frac{N}{Z}$ is equal to $1$.

Therefore, nucleus $D$ is stable.

Hence, option $\left(D\right)$ is the correct answer.