Es
Einsteinium-239
Protons (Z)
99
Neutrons (N)
140
Mass number
239
Half-Life
1.0 s
Abundance
---
Mass
239.068 u
Mass Excess
63,630.0 keV
Spin
(3/2-)
Discovered
---
Binding energy per nucleon
7,481 keV
Neutron separation energy
---
Proton separation energy
939 keV
Decay Mode
- SF
Decay chain
- EsEinsteinium-239Z 99 · N 1401.0 s
- α
- β⁺
- α4%
- α13%
- α100%
- α100%
- α100%
- α100%
- α100%