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Chemical Properties of Samarium and Iridium

Samarium
Iridium
Chemical Properties of Iridium and Samarium


Chemical Properties
Chemical Formula
Sm   
Ir   
Isotopes
  
  
Known Isotopes
30   
9
34   
5
Electronegativity
  
  
Pauling Electronegativity
1.17   
40
2.20   
4
Allred Rochow Electronegativity
1.07   
32
1.55   
11
Allen Electronegativity
Not Available   
1.68   
17
Electropositivity
  
  
Pauling Electropositivity
2.83   
14
1.80   
99+
Ionization Energies
  
  
1st Energy Level
544.50 kJ/mol   
99+
880.00 kJ/mol   
9
2nd Energy Level
1,070.00 kJ/mol   
99+
1,600.00 kJ/mol   
35
3rd Energy Level
2,260.00 kJ/mol   
99+
Not Available   
4th Energy Level
3,990.00 kJ/mol   
37
Not Available   
Electrochemical Equivalent
1.87 g/amp-hr   
34
1.14 g/amp-hr   
99+
Electron Work Function
2.70 eV   
99+
4.55 eV   
13
Other Chemical Properties
Ionization, Radioactive Isotopes   
Flammable, Ionization, Radioactive Isotopes, Radioactivity   
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