Lr
Lawrencium-255
Protons (Z)
103
Neutrons (N)
152
Mass number
255
Half-Life
31.1 s
Abundance
---
Mass
255.097 u
Mass Excess
89,947.0 keV
Spin
(1/2-)
Discovered
1971
Binding energy per nucleon
7,403 keV
Neutron separation energy
7,774 keV
Proton separation energy
2,065 keV
Decay Mode
- SF
Decay chain
- LrLawrencium-255Z 103 · N 15231.1 s
- α99.7%
- α10%
- β⁺93%
- EC99.965%
- α100%
- α~100%
- β⁻100%
- α~100%
- α~100%
- β⁻100%
- α~100%
- β⁻98.62%
- α100%
- α~100%
- α100%
- α~100%
- β⁻100%
- α~100%
- β⁻100%