[Alternatively
$ ^{A}_{Z}\text{X}\longrightarrow^{\text{ }\text{ }\text{ }\text{ }\text{ }A}_{Z+1}\text{Y}+e^-+\bar{v}$$ ^{A}_{Z}\text{X}\longrightarrow^{\text{ }\text{ }\text{ }\text{ }\text{ }A}_{Z-1}\text{Y}+e^++v$
(antineutrino)During β decay, nucleons undergo transformation. We can have:
${n}\text{ }{\longrightarrow}\text{ }{p}+e^-+{\bar{v}}$
$ \longrightarrow$ A neutron converts into a proton and an electron [Alternatively
${p}\longrightarrow{n}+e^++v$
[A proton converts into a neutron and a positron] It is because the neutrinos, or antineutrino, carry off different amounts of energy.
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