In the nuclear reaction: $X(n,\,\alpha ){\,_3}L{i^7}$ the term $X$ will be
$_5{B^{10}}$
$_5{B^9}$
$_5{B^{11}}$
$_2H{e^4}$
A nucleus of an element ${}_{84}{X^{202}}$ emits an $\alpha $-particle first, $\beta $ -particle next and then a gamma photon. The final nucleus formed has an atomic number
Pauli suggested the emission of nutrino during $\beta^{+}$decay to explain
Which of the following processes represents a gamma-decay
A nucleus $_n{X^m}$ emits one $\alpha$ particle and two $\beta$ particles. The resulting nucleus is
Write nuclear reaction equations for
$(i)$ $\alpha$ -decay of $^{226}_{88} Ra$
$(ii)$ $\alpha$ -decay of $_{94}^{242} Pu$
$(iii)$ $\beta$ -decay of $_{15}^{32} P$
$(iv)$ $\beta$ -decay of $^{210}_{83}Bi$
$(v)$ $\beta^{+}$ -decay of $_{6}^{11} C$
$(vi)$ $\beta^{+}$ -decay of $_{43}^{97} Tc$
$(vii)$ Electron capture of $^{120}_{54} Xe$