Co

Cobalt-61

Protons (Z)

27

Neutrons (N)

34

Mass number

61

Half-Life

1.65 h

Abundance

---

Mass

60.932 u

Mass Excess

-62,898.2 keV

Spin

7/2-

Discovered

1947

Binding energy per nucleon

8,756 keV

Neutron separation energy

9,319 keV

Proton separation energy

8,774 keV

Decay Mode

β⁻Nickel-61100%

Decay chain

Cobalt-61Z 27 · N 341.65 h
β⁻100%