Rb
Rubidium-90m
Protons (Z)
37
Neutrons (N)
53
Mass number
90
Half-Life
4.3 m
Abundance
---
Mass
89.915 u
Mass Excess
-79,259.0 keV
Spin
3-
Discovered
1967
Binding energy per nucleon
8,630 keV
Neutron separation energy
5,618 keV
Proton separation energy
10,012 keV
Decay Mode
Decay chain
- RbRubidium-90Z 37 · N 534.3 m
- β⁻97.4%
- β⁻100%
- β⁻100%