Gd
Gadolinium-149
Protons (Z)
64
Neutrons (N)
85
Mass number
149
Half-Life
9.28 d
Abundance
---
Mass
148.919 u
Mass Excess
-75,127.0 keV
Spin
7/2-
Discovered
1951
Binding energy per nucleon
8,239 keV
Neutron separation energy
6,929 keV
Proton separation energy
6,119 keV
Decay Mode
Decay chain
- GdGadolinium-149Z 64 · N 859.28 d
- β⁺~100%
- EC100%