Ba
Barium-131
Protons (Z)
56
Neutrons (N)
75
Mass number
131
Half-Life
11.52 d
Abundance
---
Mass
130.907 u
Mass Excess
-86,679.0 keV
Spin
1/2+
Discovered
1947
Binding energy per nucleon
8,399 keV
Neutron separation energy
7,494 keV
Proton separation energy
7,068 keV
Decay Mode
- β⁺→Caesium-131100%
Decay chain
- BaBarium-131Z 56 · N 7511.52 d
- β⁺100%
- EC100%