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Chemical Properties of Iridium and Osmium

Iridium
Osmium
Chemical Properties of Osmium and Iridium


Chemical Properties
Chemical Formula
Ir   
Os   
Isotopes
  
  
Known Isotopes
34   
5
35   
4
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
2.20   
4
Allred Rochow Electronegativity
1.55   
11
1.52   
12
Allen Electronegativity
1.68   
17
1.65   
19
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
1.80   
99+
Ionization Energies
  
  
1st Energy Level
880.00 kJ/mol   
9
840.00 kJ/mol   
12
2nd Energy Level
1,600.00 kJ/mol   
35
1,309.80 kJ/mol   
99+
3rd Energy Level
Not Available   
1,600.00 kJ/mol   
99+
Electrochemical Equivalent
1.14 g/amp-hr   
99+
1.77 g/amp-hr   
38
Electron Work Function
4.55 eV   
13
4.83 eV   
8
Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Ionization, Solubility   
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