For the given reaction, the particle $X$ is $_6{C^{11}}{ \to _5}{B^{11}} + {\beta ^ + } + X$
An anti neutrino
A proton
A neutron
A neutrino
A certain stable nucleide, after absorbing a neutron, emits $\beta$-particle and the new nucleide splits spontaneously into two $\alpha$-particles. The nucleide is
In the nuclear reaction $_{85}{X^{297}} \to Y + 4\alpha ,\;Y$ is
In a radioactive decay chain, the initial nucleus is ${}_{90}^{232}Th$. At the end there are $6\,\,\alpha -$ particles and $4\,\,\beta -$ particles with are emitted. If the end nucleus is ${}_Z^AX\,,\,A$ and $Z$ are given by
In the nuclear reaction: $X(n,\,\alpha ){\,_3}L{i^7}$ the term $X$ will be
Beta rays emitted by a radioactive material are