Zr

Zirconium-91m

Protons (Z)

40

Neutrons (N)

51

Mass number

91

Half-Life

4.35 µs

Abundance

---

Mass

90.909 u

Mass Excess

-84,728.3 keV

Spin

(21/2+)

Discovered

1985

Binding energy per nucleon

8,659 keV

Neutron separation energy

4,027 keV

Proton separation energy

5,520 keV

Decay Mode

γZirconium-91100%

Decay chain

Zirconium-91Z 40 · N 514.35 µs
γ100%