Pb
Lead-187
Protons (Z)
82
Neutrons (N)
105
Mass number
187
Half-Life
15.2 s
Abundance
---
Mass
186.984 u
Mass Excess
-14,987.0 keV
Spin
3/2-
Discovered
1972
Binding energy per nucleon
7,808 keV
Neutron separation energy
8,377 keV
Proton separation energy
2,393 keV
Decay Mode
Decay chain
- PbLead-187Z 82 · N 10515.2 s
- β⁺90.5%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%