Chemical Properties of Hafnium and Rhenium
Chemical Properties
Chemical Formula
Hf
Re
Isotopes
Known Isotopes
32
7
33
6
Electronegativity
Pauling Electronegativity
1.30
32
1.90
11
Allred Rochow Electronegativity
1.23
25
1.46
15
Allen Electronegativity
1.16
37
1.60
21
Electropositivity
Pauling Electropositivity
2.70
22
2.10
99+
Ionization Energies
1st Energy Level
658.50 kJ/mol
40
760.00 kJ/mol
20
2nd Energy Level
1,440.00 kJ/mol
99+
1,260.00 kJ/mol
99+
3rd Energy Level
2,250.00 kJ/mol
99+
2,510.00 kJ/mol
99+
4th Energy Level
3,216.00 kJ/mol
99+
3,640.00 kJ/mol
99+
Electrochemical Equivalent
1.66 g/amp-hr
99+
0.99 g/amp-hr
99+
Electron Work Function
3.90 eV
27
4.96 eV
7
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Corrosion, Ionization, Radioactive Isotopes, Solubility
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