Rb
Rubidium-89
Protons (Z)
37
Neutrons (N)
52
Mass number
89
Half-Life
15.32 m
Abundance
---
Mass
88.912 u
Mass Excess
-81,712.0 keV
Spin
3/2-
Discovered
1940
Binding energy per nucleon
8,664 keV
Neutron separation energy
7,174 keV
Proton separation energy
9,310 keV
Decay Mode
- β⁻→Strontium-89100%
Decay chain
- RbRubidium-89Z 37 · N 5215.32 m
- β⁻100%
- β⁻100%