Kr
Krypton-85m
Protons (Z)
36
Neutrons (N)
49
Mass number
85
Half-Life
4.48 h
Abundance
---
Mass
84.913 u
Mass Excess
-81,175.4 keV
Spin
1/2-
Discovered
1937
Binding energy per nucleon
8,695 keV
Neutron separation energy
6,807 keV
Proton separation energy
10,681 keV
Decay Mode
Decay chain
- KrKrypton-85Z 36 · N 494.48 h
- β⁻78.8%