A nucleus $_Z{X^A}$ emits $3 \alpha$ - particles and $5 \beta$ particle. The ratio of total neutrons and protons in the final nucleus is
$\frac{{A - Z - 12}}{{Z - 6}}$
$\frac{{A - Z}}{{Z - 1}}$
$\frac{{A - Z - 11}}{{Z - 6}}$
$\frac{{A - Z - 11}}{{Z - 1}}$
A certain stable nucleide, after absorbing a neutron, emits $\beta$-particle and the new nucleide splits spontaneously into two $\alpha$-particles. The nucleide is
A nucleus decays by ${\beta ^ + }$ emission followed by a gamma emission. If the atomic and mass numbers of the parent nucleus are $Z$ and $A$ respectively, the corresponding numbers for the daughter nucleus are respectively.
Which of the following is in the increasing order for penetrating power
Which one of the following is a possible nuclear reaction
In the given nuclear reaction, the element $X$ is :
${ }_{11}^{22} Na \rightarrow X + e ^{+}+v$