Es
Einsteinium-253
Protons (Z)
99
Neutrons (N)
154
Mass number
253
Half-Life
20.47 d
Abundance
---
Mass
253.085 u
Mass Excess
79,010.5 keV
Spin
7/2+
Discovered
1954
Binding energy per nucleon
7,453 keV
Neutron separation energy
6,351 keV
Proton separation energy
4,313 keV
Decay Mode
- α→Berkelium-249~100%
- SF8.7e-6%
Decay chain
- EsEinsteinium-253Z 99 · N 15420.47 d
- α~100%
- 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%