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Chemical Properties of Erbium and Iridium

Erbium
Iridium
Chemical Properties of Iridium and Erbium


Chemical Properties
Chemical Formula
Er   
Ir   
Isotopes
  
  
Known Isotopes
31   
8
34   
5
Electronegativity
  
  
Pauling Electronegativity
1.24   
36
2.20   
4
Allred Rochow Electronegativity
1.11   
29
1.55   
11
Allen Electronegativity
Not Available   
1.68   
17
Electropositivity
  
  
Pauling Electropositivity
2.76   
18
1.80   
99+
Ionization Energies
  
  
1st Energy Level
589.30 kJ/mol   
99+
880.00 kJ/mol   
9
2nd Energy Level
1,150.00 kJ/mol   
99+
1,600.00 kJ/mol   
35
3rd Energy Level
2,194.00 kJ/mol   
99+
Not Available   
4th Energy Level
4,120.00 kJ/mol   
33
Not Available   
Electrochemical Equivalent
2.08 g/amp-hr   
28
1.14 g/amp-hr   
99+
Electron Work Function
Not Available   
4.55 eV   
13
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Flammable, Ionization, Radioactive Isotopes, Radioactivity   
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