Pa
Protactinium-212
Protons (Z)
91
Neutrons (N)
121
Mass number
212
Half-Life
5.8 ms
Abundance
---
Mass
212.023 u
Mass Excess
21,600.0 keV
Spin
(3+)
Discovered
1997
Binding energy per nucleon
7,634 keV
Neutron separation energy
8,521 keV
Proton separation energy
-431 keV
Decay Mode
- α→Actinium-208100%
Decay chain
- PaProtactinium-212Z 91 · N 1215.8 ms
- α100%
- α100%
- α96%
- α52%
- β⁺~100%
- β⁺~100%
- β⁺100%