Beta rays emitted by a radioactive material are
Electromagnetic radiation
The electrons orbiting around the nucleus
Charged particles emitted by nucleus
Neutral particles
The total number of $\alpha$ and $\beta$ particles emitted in the nuclear reaction ${ }_{92}^{238} \mathrm{U} \rightarrow{ }_{82}^{214} \mathrm{~Pb}$ is
Originally the radioactive beta decay was thought as a decay of a nucleus with the emission of electrons only (Case $I$) . However, in addition to the electron, another (nearly) massless and electrically neutral particle is also emitted (Case $II$). Based on the figure below, which of the following is correct?
The correct order of ionizing capacity of $\alpha ,\;\beta $ and $\gamma - $ rays is
On the bombardment of neutron with Boron. $\alpha$-particle is emitted and product nuclei formed is
${}^{238}U$ has $92$ protons and $238$ nucleons. It decays by emitting an Alpha particle and becomes