Es
Einsteinium-249
Protons (Z)
99
Neutrons (N)
150
Mass number
249
Half-Life
1.7 h
Abundance
---
Mass
249.076 u
Mass Excess
71,180.0 keV
Spin
7/2+
Discovered
1956
Binding energy per nucleon
7,474 keV
Neutron separation energy
7,191 keV
Proton separation energy
3,347 keV
Decay Mode
Decay chain
- EsEinsteinium-249Z 99 · N 1501.7 h
- β⁺~100%
- α~100%
- α~100%
- β⁻~100%
- α~100%
- α~100%
- β⁻100%
- α~100%
- α100%
- β⁻100%
- α~100%
- α~100%
- α99.992%
- β⁻97.91%
- α100%
- β⁻100%
- α100%