He
Helium-7
Protons (Z)
2
Neutrons (N)
5
Mass number
7
Half-Life
2.51 zs
Abundance
---
Mass
7.028 u
Mass Excess
26,073.0 keV
Spin
(3/2-)
Discovered
1967
Binding energy per nucleon
4,123 keV
Neutron separation energy
-410 keV
Proton separation energy
23,096 keV
Decay Mode
- n→Helium-6100%
Decay chain
- HeHelium-7Z 2 · N 52.51 zs
- n100%
- β⁻~100%