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Chemical Properties of Osmium and Iridium

Osmium
Iridium
Chemical Properties of Iridium and Osmium


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