Pb
Lead-189
Protons (Z)
82
Neutrons (N)
107
Mass number
189
Half-Life
39.0 s
Abundance
---
Mass
188.981 u
Mass Excess
-17,844.0 keV
Spin
3/2-
Discovered
1972
Binding energy per nucleon
7,826 keV
Neutron separation energy
8,104 keV
Proton separation energy
2,797 keV
Decay Mode
Decay chain
- PbLead-189Z 82 · N 10739.0 s
- β⁺99.58%
- β⁺100%
- β⁺100%
- β⁺~100%
- β⁺100%
- EC100%