Ru

Ruthenium-109m

Protons (Z)

44

Neutrons (N)

65

Mass number

109

Half-Life

680.0 ns

Abundance

---

Mass

108.913 u

Mass Excess

-80,642.0 keV

Spin

(5/2-)

Discovered

1976

Binding energy per nucleon

8,495 keV

Neutron separation energy

5,052 keV

Proton separation energy

12,008 keV

Decay Mode

γRuthenium-109100%

Decay chain

Ruthenium-109Z 44 · N 65680.0 ns
γ100%
β⁻100%
β⁻100%
β⁻100%