Pu
Plutonium-239n
Protons (Z)
94
Neutrons (N)
145
Mass number
239
Half-Life
7.5 µs
Abundance
---
Mass
239.055 u
Mass Excess
51,690.0 keV
Spin
(5/2+)
Discovered
1970
Binding energy per nucleon
7,547 keV
Neutron separation energy
2,544 keV
Proton separation energy
3,054 keV
Decay Mode
- SF100%
- γ→Plutonium-239
Decay chain
- PuPlutonium-239Z 94 · N 1457.5 µs
- γ
- α~100%
- α~100%
- β⁻100%
- α~100%
- β⁻98.62%
- α100%
- α~100%
- α100%
- α~100%
- β⁻100%
- α~100%
- β⁻100%