Question

by what factor must the mass number change for the nuclear radius to become double?

Answer 1

Answer:

r0 = is the radius of a nucleon approx 1.3 fm. A = number of nucleons [or atomic mass number, or Z + N] where A = Atomic mass number (the number of protons Z, plus the number of neutrons N) and r0 = 1.25 fm = 1.25 × 10−15 m.