Np
Neptunium-219
Protons (Z)
93
Neutrons (N)
126
Mass number
219
Half-Life
570.0 µs
Abundance
---
Mass
219.032 u
Mass Excess
29,440.0 keV
Spin
(9/2-)
Discovered
2015
Binding energy per nucleon
7,605 keV
Neutron separation energy
---
Proton separation energy
-256 keV
Decay Mode
- α→Protactinium-215100%
Decay chain
- NpNeptunium-219Z 93 · N 126570.0 µs
- α100%
- α100%
- α100%
- α95%
- β⁺69%
- β⁺99.89%
- β⁺100%
- EC100%