The radius of the platinum atom in a nucleus is 60.2 fermi. Find the volume of the nucleus.
Why fermii is used to measure size of a nucleus?

Explanation

The radius of the nucleus `=60.2` fermi
`=60.2xx10^(-15)`m
Volume of the platium nucleus
`=4/3 pi r^(3)m^(3)=4/3xx3.14xx(60.2xx10^(-15))^(3)m^(3)`
`=4/3xx63.14xx(218167xx10^(-45))`
`=4/3xx3.14xx(2.18167xx10^(-40))`
`=9.133xx10^(-40)m^(3)`
Volume of the platinum nucleus is `9.133xx10^(-40)m^(3)`
fermi is used for measure very small distance so it is used to measure the nuclear size of an atom.
It is denoted as 1 Fermi `=10^(-15)` m.