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Formula Beta Minus Decay Parent nuclide    Daughter nuclide    Electron    Electron antineutrino

Formula
Formula: Beta Minus Decay
Determine Daughter Nuclide Using the Chart of Nuclides

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.

Electron

Unit
The parent nuclide emits an electron as radioactive radiation.

Electron antineutrino

Unit
The parent nuclide emits an electron antineutrino as radioactive radiation.