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Chemical Properties of Iridium and Lanthanum

Iridium
Lanthanum
Chemical Properties of Lanthanum and Iridium


Chemical Properties
Chemical Formula
Ir   
La   
Isotopes
  
  
Known Isotopes
34   
5
31   
8
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.10   
99+
Allred Rochow Electronegativity
1.55   
11
1.08   
31
Allen Electronegativity
1.68   
17
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.90   
10
Ionization Energies
  
  
1st Energy Level
880.00 kJ/mol   
9
538.10 kJ/mol   
99+
2nd Energy Level
1,600.00 kJ/mol   
35
1,067.00 kJ/mol   
99+
3rd Energy Level
Not Available   
1,850.30 kJ/mol   
99+
4th Energy Level
Not Available   
4,819.00 kJ/mol   
22
5th Energy Level
Not Available   
5,940.00 kJ/mol   
25
Electrochemical Equivalent
1.14 g/amp-hr   
99+
1.73 g/amp-hr   
99+
Electron Work Function
4.55 eV   
13
3.50 eV   
31
Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Solubility   
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