The mass number of $He$ is $4$ and that for sulphur is $32.$ The radius of sulphur nucleus is larger than that of helium, by times
$\sqrt 8 $
$4$
$2$
$8$
Which of the following particles are constituents of the nucleus
The sodium nucleus $_{11}^{23}Na$ contains
Radius of the second Bohr obit of singly ionised helium atom is ......... $Å$
The mass density of a nucleus varies with mass number $A$ as
For effective nuclear forces, the distance should be