JEE Main 20203 Sep, Evening shiftPhysicsEasyAtoms and Nuclei183× since 2002
The radius R of a nucleus of mass number A can be estimated by the formula
R = (1.3 10^–15)A1/3 m.
It follows that the mass density of a nucleus is of the order of :
(M_prot. M_neut 1.67 10^–27 kg)