Pa
Protactinium-235
Protons (Z)
91
Neutrons (N)
144
Mass number
235
Half-Life
24.4 m
Abundance
---
Mass
235.045 u
Mass Excess
42,289.0 keV
Spin
3/2-
Discovered
1950
Binding energy per nucleon
7,588 keV
Neutron separation energy
6,121 keV
Proton separation energy
5,613 keV
Decay Mode
- β⁻→Uranium-235100%
Decay chain
- PaProtactinium-235Z 91 · N 14424.4 m
- β⁻100%
- α~100%
- β⁻100%
- α~100%
- β⁻98.62%
- α100%
- α~100%
- α100%
- α~100%
- β⁻100%
- α~100%
- β⁻100%