Pb
Lead-191
Protons (Z)
82
Neutrons (N)
109
Mass number
191
Half-Life
1.33 m
Abundance
---
Mass
190.978 u
Mass Excess
-20,291.0 keV
Spin
3/2-
Discovered
1974
Binding energy per nucleon
7,842 keV
Neutron separation energy
7,945 keV
Proton separation energy
3,214 keV
Decay Mode
Decay chain
- PbLead-191Z 82 · N 1091.33 m
- β⁺~100%
- β⁺
- β⁺100%
- β⁺100%
- EC100%