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Chemical Properties of Iridium and Erbium

Iridium
Erbium
Chemical Properties of Erbium and Iridium


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