Mg
Magnesium-31
Protons (Z)
12
Neutrons (N)
19
Mass number
31
Half-Life
270.0 ms
Abundance
---
Mass
30.997 u
Mass Excess
-3,122.0 keV
Spin
1/2+
Discovered
1977
Binding energy per nucleon
7,869 keV
Neutron separation energy
2,312 keV
Proton separation energy
18,886 keV
Decay Mode
Decay chain
- MgMagnesium-31Z 12 · N 19270.0 ms
- β⁻93.8%
- β⁻100%
- β⁻100%