Write the definitions of isotopes, isobar and isotone.
A chain reaction is continuous due to
Which of the following figure represents the variation of In $\left(\frac{R}{R_{0}}\right)$ with $\ln A$ (If $R=$ radius of a nucleus and $A =$ its mass number)
Nuclear forces are
Who invented neutron ?
Two protons exerts a nuclear force on each other, the distance between them is