Question

radius of sphere in nucleus???

Answer 1

The diameter of the nucleus is in the range of1.75 fm(1.75×10 to the power of -15 m) for hydrogen (the diameter of a single proton) to about 15 fm for the heaviest atoms, such as uranium.

Answer 2

The average radius of a nucleus with A nucleons is R = R0A1/3, where R0 = 1.2*10-15 m.