3 . How the size of a nucleus is experimentally determined? Write the relation between the radius and mass number of the nucleus Show that density of nucleus is independent of its mass number. Share with your friends Share 15 Sandeep K. Gupta answered this Dear Student, 1- Radius of nucleous is determined by Rutherford α-particle scattering experiment by using the concept of distance of closest approach.2- Relation between mass number and radius of nucleous is given by R=R0A1/3 , Here R0=1.2×10-15m3-Density of nuclear matter is given by- If m is average mass of a nucleon then mass of nucleous is given by M=mA ρ=mA43πR3=mA43πR03A=3mA4πR03 ⇒ ρ=3m4πR03 From above it is clear that density of nucleous does not depends on mass number of the given element.Using m=1.66×10-27kg and R0=1.2×10-15m we get ρ=2.29×1017kg/m3. Regards. 13 View Full Answer
