Kr

Krypton-91

Protons (Z)

36

Neutrons (N)

55

Mass number

91

Half-Life

8.57 s

Abundance

---

Mass

90.924 u

Mass Excess

-70,974.0 keV

Spin

5/2+

Discovered

1951

Binding energy per nucleon

8,542 keV

Neutron separation energy

4,086 keV

Proton separation energy

14,263 keV

Decay Mode

Decay chain

Krypton-91Z 36 · N 558.57 s
β⁻100%
β⁻100%
β⁻100%
β⁻100%