Np

Neptunium-244

Protons (Z)

93

Neutrons (N)

151

Mass number

244

Half-Life

2.29 m

Abundance

---

Mass

244.068 u

Mass Excess

63,240.0 keV

Spin

(7-)

Discovered

1987

Binding energy per nucleon

7,514 keV

Neutron separation energy

4,641 keV

Proton separation energy

6,529 keV

Decay Mode

β⁻Plutonium-244100%

Decay chain

Neptunium-244Z 93 · N 1512.29 m
β⁻100%
α99.877%
β⁻100%
β⁻100%
α~100%
α~100%
α~100%
β⁻100%
β⁻100%
α~100%
α~100%
α100%
α100%
β⁻100%
β⁻64.046%
α100%