Rb
Rubidium-99
Protons (Z)
37
Neutrons (N)
62
Mass number
99
Half-Life
54.0 ms
Abundance
---
Mass
98.945 u
Mass Excess
-51,121.0 keV
Spin
(3/2+)
Discovered
1971
Binding energy per nucleon
8,295 keV
Neutron separation energy
4,823 keV
Proton separation energy
14,290 keV
Decay Mode
Decay chain
- RbRubidium-99Z 37 · N 6254.0 ms
- β⁻82.7%
- β⁻99.9%
- β⁻98.23%
- β⁻100%
- β⁻100%
- β⁻100%
- β⁻100%