Pb
Lead-185m
Protons (Z)
82
Neutrons (N)
103
Mass number
185
Half-Life
4.07 s
Abundance
---
Mass
184.988 u
Mass Excess
-11,470.0 keV
Spin
13/2+
Discovered
1975
Binding energy per nucleon
7,787 keV
Neutron separation energy
8,489 keV
Proton separation energy
1,876 keV
Decay Mode
Decay chain
- PbLead-185Z 82 · N 1034.07 s
- α50%
- β⁺72.986%
- β⁺97.3%
- β⁺~100%
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%