The mass number of a nucleus is
Always less than its atomic number
Always more than its atomic number
Always equal to its atomic number
Sometimes more than and sometimes equal to its atomic number
If radius of the $^{27}_{13}Al$ nucleus is taken to be $R_{Al}$, then the radius of $^{125}_{53}Te$ nucleus is nearly
The graph between $log\, R$ and $log\, A$ where $R$ is the nuclear radius and $A$ is the mass number is
Write the value of $R_0$ constant.
The mass number of a nucleus is equal to the number of
Is nuclear force short range or long range ?