Question

The ratio of the radius of the nucleus of mass number 216 to the radius of the nucleus of mass number 64 is approximately:(a) 1.0(b) 1.2(c) 1.5(d) 1.8

Answer 1

R = R°A^1/3

So ratio is

R1/R2= { 216/64 }

R1/R2 = 6/4= 3/2 = 1.5