The ratio of mass densities of nuclei of $^{40}Ca$ and $^{16}O$ is close to
$0.1$
$5$
$2$
$1$
Atomic number of a nucleus is $Z$ and atomic mass is $M.$ The number of neutron is
How much was the radius of the nucleus estimated from the experiment of $\alpha -$ scattering ?
The nuclear force between two nucleons is explained by
A nucleus of mass number $189$ splits into two nuclei having mass number $125$ and $64$ . The ratio of radius of two daughter nuclei respectively is:
How the radius of the nucleus is estimated ? Write its relation to radius and atomic mass number.