Chemical Properties of Holmium and Iridium
Chemical Properties
Chemical Formula
Ho
Ir
Isotopes
Known Isotopes
34
5
34
5
Electronegativity
Pauling Electronegativity
1.23
37
2.20
4
Allred Rochow Electronegativity
1.10
30
1.55
11
Allen Electronegativity
Not Available
1.68
17
Electropositivity
Pauling Electropositivity
2.77
17
1.80
99+
Ionization Energies
1st Energy Level
581.00 kJ/mol
99+
880.00 kJ/mol
9
2nd Energy Level
1,140.00 kJ/mol
99+
1,600.00 kJ/mol
35
3rd Energy Level
2,204.00 kJ/mol
99+
Not Available
4th Energy Level
4,100.00 kJ/mol
34
Not Available
Electrochemical Equivalent
2.02 g/amp-hr
29
1.14 g/amp-hr
99+
Electron Work Function
Not Available
4.55 eV
13
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Flammable, Ionization, Radioactive Isotopes, Radioactivity
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