Co

Cobalt-55

Protons (Z)

27

Neutrons (N)

28

Mass number

55

Half-Life

17.53 h

Abundance

---

Mass

54.942 u

Mass Excess

-54,030.0 keV

Spin

7/2-

Discovered

1938

Binding energy per nucleon

8,670 keV

Neutron separation energy

14,091 keV

Proton separation energy

5,064 keV

Decay Mode

β⁺Iron-55100%

Decay chain

Cobalt-55Z 27 · N 2817.53 h
β⁺100%
EC100%