Na
Sodium-31
Protons (Z)
11
Neutrons (N)
20
Mass number
31
Half-Life
16.8 ms
Abundance
---
Mass
31.013 u
Mass Excess
12,246.0 keV
Spin
3/2+
Discovered
1969
Binding energy per nucleon
7,399 keV
Neutron separation energy
4,300 keV
Proton separation energy
18,323 keV
Decay Mode
Decay chain
- NaSodium-31Z 11 · N 2016.8 ms
- β⁻63.27%
- β⁻93.8%
- β⁻100%
- β⁻100%