Zr

Zirconium-81

Protons (Z)

40

Neutrons (N)

41

Mass number

81

Half-Life

5.5 s

Abundance

---

Mass

80.938 u

Mass Excess

-57,520.0 keV

Spin

(3/2-)

Discovered

1997

Binding energy per nucleon

8,395 keV

Neutron separation energy

10,831 keV

Proton separation energy

3,661 keV

Decay Mode

Decay chain

Zirconium-81Z 40 · N 415.5 s
β⁺99.88%
β⁺100%
β⁺100%
β⁺100%
EC100%