In the nuclear reaction: $X(n,\,\alpha ){\,_3}L{i^7}$ the term $X$ will be
$_5{B^{10}}$
$_5{B^9}$
$_5{B^{11}}$
$_2H{e^4}$
Explain $\beta -$ decay and how does a radioactive nucleus emit $\beta -$ particles, even if there are no $\beta -$ particles in the nucleus ? Here why does radioactive nuclide not change during beta emission ?
A nucleus of lead $Pb _{82}^{214}$ emits two electrons followed by an $\alpha$-particle. The resulting nucleus will have
In the nuclear reaction $_{85}{X^{297}} \to Y + 4\alpha ,\;Y$ is
Which one of the following is a possible nuclear reaction
In a radioactive decay, neither the atomic number nor the mass number changes. Which of the following would be emitted in the decay process