Kr

Krypton-81m

Protons (Z)

36

Neutrons (N)

45

Mass number

81

Half-Life

13.1 s

Abundance

---

Mass

80.917 u

Mass Excess

-77,505.6 keV

Spin

1/2-

Discovered

1940

Binding energy per nucleon

8,680 keV

Neutron separation energy

7,683 keV

Proton separation energy

8,906 keV

Decay Mode

Decay chain

Krypton-81Z 36 · N 4513.1 s
γ~100%
EC100%