Md

Mendelevium-255

Protons (Z)

101

Neutrons (N)

154

Mass number

255

Half-Life

27.0 m

Abundance

---

Mass

255.091 u

Mass Excess

84,842.0 keV

Spin

7/2-

Discovered

1958

Binding energy per nucleon

7,429 keV

Neutron separation energy

6,679 keV

Proton separation energy

3,349 keV

Decay Mode

SF

Decay chain

Mendelevium-255Z 101 · N 15427.0 m
β⁺93%
α~100%
α100%
α100%
β⁻100%
α~100%
β⁻100%
α~100%
α~100%
β⁻100%
α~100%
β⁻98.62%
α100%
α~100%
α100%
α~100%
β⁻100%
α~100%
β⁻100%