The radius of an atomic nucleus is of the order of

The radius of nucleus is of the order of $1.5 \mathrm{x} {10}^{-13} \mathrm{to} 6.5 \mathrm{x} {10}^{-13}\mathrm{cm}$ or 1.5 to 6.5 Fermi (lFermi = 10^-13cm).