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Chemical Properties of Lanthanum and Iridium

Lanthanum
Iridium
Chemical Properties of Iridium and Lanthanum


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