91 Protactinium

Atomic Number
Atomic Weight
Boiling Point °C
Melting Point °C
Specific Gravity
Electron Configuration
Electronegativity
Heat of Vaporization
Heat of Fusion
91
231.0359


15.4
Rn/5F2,6D1,7S2
1.5

12.3
Electrical Conductivity
Thermal Conductivity
Specific Heat
First Ion Potential
Covalent Radius
Atomic Radius
Atomic Volume
Oxidation States
0.0529
0.47

5.89


15
5,4

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