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Chemical Properties of Gold and Iridium

Gold
Iridium
Chemical Properties of Iridium and Gold


Chemical Properties
Chemical Formula
Au   
Ir   
Isotopes
  
  
Known Isotopes
36   
3
34   
5
Electronegativity
  
  
Pauling Electronegativity
2.54   
1
2.20   
4
Allred Rochow Electronegativity
1.42   
18
1.55   
11
Mulliken-Jaffe Electronegativity
1.87   
7
Not Available   
Allen Electronegativity
1.92   
5
1.68   
17
Electropositivity
  
  
Pauling Electropositivity
1.46   
99+
1.80   
99+
Ionization Energies
  
  
1st Energy Level
890.10 kJ/mol   
8
880.00 kJ/mol   
9
2nd Energy Level
1,980.00 kJ/mol   
12
1,600.00 kJ/mol   
35
Electrochemical Equivalent
2.45 g/amp-hr   
21
1.14 g/amp-hr   
99+
Electron Work Function
5.10 eV   
4
4.55 eV   
13
Other Chemical Properties
Chemical Stability, Ionization, Solubility   
Flammable, Ionization, Radioactive Isotopes, Radioactivity   
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