Cu

Copper-55

Protons (Z)

29

Neutrons (N)

26

Mass number

55

Half-Life

55.9 ms

Abundance

---

Mass

54.966 u

Mass Excess

-31,640.0 keV

Spin

(3/2-)

Discovered

1987

Binding energy per nucleon

8,234 keV

Neutron separation energy

18,471 keV

Proton separation energy

-349 keV

Decay Mode

Decay chain

Copper-55Z 29 · N 2655.9 ms
β⁺100%
β⁺100%
β⁺100%
EC100%