La
Lanthanum-148
Protons (Z)
57
Neutrons (N)
91
Mass number
148
Half-Life
1.41 s
Abundance
---
Mass
147.933 u
Mass Excess
-62,709.0 keV
Spin
(2-)
Discovered
1969
Binding energy per nucleon
8,194 keV
Neutron separation energy
4,102 keV
Proton separation energy
9,734 keV
Decay Mode
Decay chain
- LaLanthanum-148Z 57 · N 911.41 s
- β⁻99.82%
- β⁻100%
- β⁻100%