Lr
Lawrencium-254
Protons (Z)
103
Neutrons (N)
151
Mass number
254
Half-Life
12.0 s
Abundance
---
Mass
254.096 u
Mass Excess
89,650.0 keV
Spin
(4+)
Discovered
1981
Binding energy per nucleon
7,401 keV
Neutron separation energy
6,941 keV
Proton separation energy
1,998 keV
Decay Mode
- SF<0.1%
Decay chain
- LrLawrencium-254Z 103 · N 15112.0 s
- α71.7%
- β⁺92.974%
- α~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α100%
- α99.98%
- β⁻100%
- β⁻99.976%
- α100%
- β⁻~100%
- β⁻~100%
- α100%