In the atomic scale,the weakest force in nature is

The atomic number of a nucleus is $Z$ and the atomic mass number is $M$. The number of neutrons is

In which of the following nuclear reactions is the product incorrectly matched?

Two nuclei have their mass numbers in the ratio of $1: 3$. The ratio of their nuclear densities would be

If the radius of the $_{13}^{27}Al$ nucleus is estimated to be $3.6 \, \text{Fermi}$, then the radius of the $_{52}^{125}Te$ nucleus will be nearly .......... $\text{Fermi}$.

The ratio of mass numbers of two nuclei is $1:3$. What is the ratio of their nuclear densities?