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Chemical Properties of Tantalum and Iridium
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Tantalum
Iridium
Chemical Properties of Iridium and Tantalum
Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Chemical Properties
Chemical Formula
Ta
Ir
Isotopes
Known Isotopes
31
8
34
5
Electronegativity
Pauling Electronegativity
1.50
27
2.20
4
Allred Rochow Electronegativity
1.33
22
1.55
11
Allen Electronegativity
1.34
33
1.68
17
Electropositivity
Pauling Electropositivity
2.50
27
1.80
99+
Ionization Energies
1st Energy Level
761.00 kJ/mol
18
880.00 kJ/mol
9
2nd Energy Level
1,500.00 kJ/mol
40
1,600.00 kJ/mol
35
Electrochemical Equivalent
1.35 g/amp-hr
99+
1.14 g/amp-hr
99+
Electron Work Function
4.25 eV
21
4.55 eV
13
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Flammable, Ionization, Radioactive Isotopes, Radioactivity
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