Es

Einsteinium-243

Protons (Z)

99

Neutrons (N)

144

Mass number

243

Half-Life

22.1 s

Abundance

---

Mass

243.07 u

Mass Excess

64,750.0 keV

Spin

(7/2+)

Discovered

1973

Binding energy per nucleon

7,486 keV

Neutron separation energy

8,121 keV

Proton separation energy

1,926 keV

Decay Mode

SF<1%

Decay chain

Einsteinium-243Z 99 · N 14422.1 s
α61%
β⁺~100%
β⁺~100%
EC99.99%
α~100%
α~100%
β⁻100%
α~100%
β⁻98.62%
α100%
α~100%
α100%
α~100%
β⁻100%
α~100%
β⁻100%