JEE MAIN - Chemistry (2005 - No. 39)
The photon of hard gamma radiation knocks a proton out of $${}_{12}^{24}Mg$$ nucleus to form
the isotope of parent nucleus
the isobar of parent nucleus
the nuclide $${}_{11}^{23}Na$$
the isobar of $${}_{11}^{23}Na$$
Explanation
$${}_{12}M{g^{24}}\buildrel \, \over
\longrightarrow {}_{11}N{a^{23}} + {}_1{H^1}.$$