What kind of a force does neutron-neutron ?
In the nuclear reaction $_{92}{U^{238}}{ \to _z}T{h^A}{ + _2}H{e^4}$, the values of $A$ and $Z$ are
How much was the radius of the nucleus estimated from the experiment of $\alpha -$ scattering ?
The mass number of a nucleus is equal to the number of
Assertion : Neutrons penetrate mater more readily as compared to protons.
Reason : Neutrons are slightly more massive than protons.
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