Np
Neptunium-223
Protons (Z)
93
Neutrons (N)
130
Mass number
223
Half-Life
2.5 µs
Abundance
---
Mass
223.033 u
Mass Excess
30,660.0 keV
Spin
(9/2-)
Discovered
2017
Binding energy per nucleon
7,608 keV
Neutron separation energy
8,681 keV
Proton separation energy
899 keV
Decay Mode
- α→Protactinium-219100%
Decay chain
- NpNeptunium-223Z 93 · N 1302.5 µs
- α100%
- α100%
- α~100%
- α87%
- β⁺90%
- β⁺~100%
- β⁺100%