Cs
Caesium-149
Protons (Z)
55
Neutrons (N)
94
Mass number
149
Half-Life
112.3 ms
Abundance
---
Mass
148.954 u
Mass Excess
-43,300.0 keV
Spin
(3/2+)
Discovered
1979
Binding energy per nucleon
8,073 keV
Neutron separation energy
4,460 keV
Proton separation energy
11,939 keV
Decay Mode
Decay chain
- CsCaesium-149Z 55 · N 94112.3 ms
- β⁻75%
- β⁻96.1%
- β⁻98.57%
- β⁻100%
- β⁻100%
- β⁻100%
- β⁻100%