Es
Einsteinium-254
Protons (Z)
99
Neutrons (N)
155
Mass number
254
Half-Life
275.7 d
Abundance
---
Mass
254.088 u
Mass Excess
81,994.2 keV
Spin
7+
Discovered
1954
Binding energy per nucleon
7,444 keV
Neutron separation energy
5,088 keV
Proton separation energy
4,597 keV
Decay Mode
- SF<3e-6%
Decay chain
- EsEinsteinium-254Z 99 · N 155275.7 d
- α~100%
- β⁻100%
- α99.923%
- α99.974%
- α~100%
- α~100%
- β⁻100%
- β⁻100%
- α~100%
- α~100%
- α~100%
- α100%
- α99.98%
- β⁻100%
- β⁻99.976%
- α100%
- β⁻~100%
- β⁻~100%
- α100%