Protactinium
Pa
1ST Ion Potential
5.890000
91
2nd Ion Potential
*
3rd Ion Potential
*
Previous
Group
3A
Next
Crystal Structure
Ortho
Atomic Weight
231.03590
Therm Conductivity
0.47000
Melting Point
*
Vaporization
*
Elect Conductivity
0.05290
Boiling Pt.
*
Fusion
12.30000
Ionic Radius
0.890000
Atomic Vol.
15.00000
Specific Heat
*
Automic Radius
*
Density
15.400
Covalent Rad.
*
Oxidation States
5,4
State
Solid
Electonic Config
[Rn]5f2_6d1_7s2
Electro Neg
1.500000

Color Spectrum

<==== Ultraviolet Protactinium

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By Milt Hull , HullSoft Enterprises

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