Np

Neptunium-225

Protons (Z)

93

Neutrons (N)

132

Mass number

225

Half-Life

6.5 ms

Abundance

---

Mass

225.034 u

Mass Excess

31,620.0 keV

Spin

(9/2-)

Discovered

1994

Binding energy per nucleon

7,607 keV

Neutron separation energy

8,483 keV

Proton separation energy

1,412 keV

Decay Mode

Decay chain

Neptunium-225Z 93 · N 1326.5 ms
α100%
α100%
α100%
α99.44%
β⁺96.1%
α99.546%
EC100%