Pt

Platinum-204m

Protons (Z)

78

Neutrons (N)

126

Mass number

204

Half-Life

5.5 µs

Abundance

---

Mass

203.983 u

Mass Excess

-15,630.0 keV

Spin

(5-)

Discovered

2009

Binding energy per nucleon

7,849 keV

Neutron separation energy

4,191 keV

Proton separation energy

8,549 keV

Decay Mode

γPlatinum-204100%

Decay chain

Platinum-204Z 78 · N 1265.5 µs
γ100%
β⁻100%
β⁻100%