Ni

Nickel-55

Protons (Z)

28

Neutrons (N)

27

Mass number

55

Half-Life

203.9 ms

Abundance

---

Mass

54.951 u

Mass Excess

-45,336.0 keV

Spin

7/2-

Discovered

1972

Binding energy per nucleon

8,497 keV

Neutron separation energy

14,129 keV

Proton separation energy

4,615 keV

Decay Mode

β⁺Cobalt-55100%

Decay chain

Nickel-55Z 28 · N 27203.9 ms
β⁺100%
β⁺100%
EC100%