Pt

Platinum-189m

Protons (Z)

78

Neutrons (N)

111

Mass number

189

Half-Life

464.0 ns

Abundance

---

Mass

188.961 u

Mass Excess

-36,296.0 keV

Spin

9/2-

Discovered

1970

Binding energy per nucleon

7,940 keV

Neutron separation energy

6,546 keV

Proton separation energy

5,240 keV

Decay Mode

γPlatinum-189100%

Decay chain

Platinum-189Z 78 · N 111464.0 ns
γ100%
β⁺100%
EC100%