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Chemical Properties of Iridium and Einsteinium

Iridium
Einsteinium
Chemical Properties of Einsteinium and Iridium


Chemical Properties
Chemical Formula
Ir   
Es   
Isotopes
  
  
Known Isotopes
34   
5
16   
23
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.54   
26
Allred Rochow Electronegativity
1.55   
11
1.20   
27
Allen Electronegativity
1.68   
17
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.70   
22
Ionization Energies
  
  
1st Energy Level
880.00 kJ/mol   
9
619.00 kJ/mol   
99+
2nd Energy Level
1,600.00 kJ/mol   
35
1,216.00 kJ/mol   
99+
3rd Energy Level
Not Available   
2,334.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,734.00 kJ/mol   
99+
Electrochemical Equivalent
1.14 g/amp-hr   
99+
4.74 g/amp-hr   
5
Electron Work Function
4.55 eV   
13
Not Available   
Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Radioactivity   
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