# Atomic radius is of the order of $10^{-8} cm$ and nuclear radius is of the order of $10^{-13}$ cm. calculate what fraction of atom is occupied by nucleus?
$(a)\;10^{-14} \times V_{atom}\qquad(b)\;10^{-13} \times V_{atom}\qquad(c)\;10^{-15} \times V_{atom}\qquad(d)\;10^{-11} \times V_{atom}$