Pt

Platinum-187m

Protons (Z)

78

Neutrons (N)

109

Mass number

187

Half-Life

311.0 µs

Abundance

---

Mass

186.961 u

Mass Excess

-36,511.0 keV

Spin

11/2+

Discovered

1976

Binding energy per nucleon

7,940 keV

Neutron separation energy

6,718 keV

Proton separation energy

4,628 keV

Decay Mode

γPlatinum-187100%

Decay chain

Platinum-187Z 78 · N 109311.0 µs
γ100%
β⁺100%
β⁺100%