Y
Yttrium-85m
Protons (Z)
39
Neutrons (N)
46
Mass number
85
Half-Life
4.86 h
Abundance
---
Mass
84.916 u
Mass Excess
-77,822.0 keV
Spin
(9/2+)
Discovered
1952
Binding energy per nucleon
8,628 keV
Neutron separation energy
11,999 keV
Proton separation energy
4,461 keV
Decay Mode
Decay chain
- YYttrium-85Z 39 · N 464.86 h
- β⁺100%
- EC100%