Pb
Lead-181
Protons (Z)
82
Neutrons (N)
99
Mass number
181
Half-Life
39.0 ms
Abundance
---
Mass
180.997 u
Mass Excess
-3,110.0 keV
Spin
(9/2-)
Discovered
1989
Binding energy per nucleon
7,734 keV
Neutron separation energy
9,240 keV
Proton separation energy
1,009 keV
Decay Mode
Decay chain
- PbLead-181Z 82 · N 9939.0 ms
- α100%
- α100%
- α86%
- β⁺86.3%
- α0.005%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%