The radius of a nucleus of a mass number `A` is directly proportional to.

The density of a nucleus of mass number A is proportional to

Neutron scattering experiments have shown that the radius of the nucleus of an atom is directly proporitonal to the cube root of the number of nucleons in the nucleus. From _(3)^(7)Li to _(76)^(189)Os the radius is:

The volume of a nucleus is directly proportional to

The valume of the nucleus of an atom of an element of mass number A is proportional to

If the radius of a nucleus with a mass number 7 is 2 fermi then the radius of the nucleus with mass number 189 is

How are the radius of nucleus r and mass number (A) related to each other?