The radius of an atom is of the order of 1 Å and radius of nucleus is of the order of fermi. How many magnitudes higher is the volume of the atom as compared to the volume of the nucleus?
According to the question, Radius of atom 1A∘=10−10m Radius of nucleus≈fermi=10−15m Volume of atom Vatom=34πRA3 Volume of nucleus Vnucleus=34πRN3 VNucleusVAtom=34πRN334πR3−A=(RNRA)3=(10−1510−10)=1015