Question

Most of the stable nuclides have

• A. Even number of protons and even number of neutrons
• B. Odd number of proton and odd number of neutrons
• C. Even number of protons and odd number of neutrons
• D. Odd number of protons and even number of neutrons

Answer 1

The correct option is A Even number of protons and even number of neutrons

The nuclear forces are spin-dependent forces.

So, the stability of the nucleons are more, when the nucleons are completely paired.

Therefore, the most stable nuclides have the even number of protons and even number of neutrons.

Hence, option $\left(A\right)$ is correct.