# Formula Beta Minus Decay Parent nuclide    Daughter nuclide    Electron    Electron antineutrino

## Parent nuclide

Unit
Parent nuclide of type $$X$$ has nucleon number $$A$$ (neutron+proton number) and proton number $$\class{red}{Z}$$. The parent nuclide decays into a daughter nuclide.

In beta-minus decay, a neutron is converted into a proton, an electron, and an electron antineutrino:$$\mathrm{n} ~\rightarrow~ \class{red}{\mathrm{p}} ~+~ \text{e}^- ~+~ \bar{\mathrm{\nu}}_{\text e}$$

## Daughter nuclide

Unit
Daughter nuclide is the decayed nuclide, which now has 1 proton more after beta-minus decay.

Unit