Es

Einsteinium-241

Protons (Z)

99

Neutrons (N)

142

Mass number

241

Half-Life

5.1 s

Abundance

---

Mass

241.069 u

Mass Excess

63,890.0 keV

Spin

(3/2-)

Discovered

1996

Binding energy per nucleon

7,485 keV

Neutron separation energy

8,411 keV

Proton separation energy

1,388 keV

Decay Mode

Decay chain

Einsteinium-241Z 99 · N 1425.1 s
α100%
β⁺
β⁺
β⁺99.975%
EC99.996%
α~100%
β⁻100%
α~100%
α100%
β⁻100%
α~100%
α~100%
α99.992%
β⁻97.91%
α100%
β⁻100%
α100%