Na
Sodium-28
Protons (Z)
11
Neutrons (N)
17
Mass number
28
Half-Life
33.1 ms
Abundance
---
Mass
27.999 u
Mass Excess
-988.0 keV
Spin
1+
Discovered
1969
Binding energy per nucleon
7,799 keV
Neutron separation energy
3,541 keV
Proton separation energy
15,327 keV
Decay Mode
Decay chain
- NaSodium-28Z 11 · N 1733.1 ms
- β⁻99.42%
- β⁻100%
- β⁻100%