$_{89}Ac^{231}$ gives $_{82}Pb^{207}$ after the emission of some $\alpha$ and $\beta$ particles. The number of such $\alpha$ and $\beta$ particles are respectively:

The nuclear reaction $_{29}^{63}Cu + _{2}^{4}He \to _{17}^{37}Cl + 14_{1}^{1}H + 16_{0}^{1}n$ is referred to as

Which of the following nuclear reactions results in the emission of a neutron?

In the sequence of the following nuclear reactions $_{92}X^{238}$ $\xrightarrow{-\alpha} Y$ $\xrightarrow{-\beta} Z$ $\xrightarrow{-\beta} L$ $\xrightarrow{-n\alpha} _{84}M^{218}$. The value of $n$ will be:

The first artificial disintegration of an atomic nucleus was achieved by

Which of the following particles is emitted in the reaction $_{13}Al^{27} + _{2}He^{4} \to _{15}P^{30} + .....$?