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Chemical Properties of Erbium and Samarium

Erbium
Samarium
Chemical Properties of Samarium and Erbium


Chemical Properties
Chemical Formula
Er   
Sm   
Isotopes
  
  
Known Isotopes
31   
8
30   
9
Electronegativity
  
  
Pauling Electronegativity
1.24   
36
1.17   
40
Allred Rochow Electronegativity
1.11   
29
1.07   
32
Electropositivity
  
  
Pauling Electropositivity
2.76   
18
2.83   
14
Ionization Energies
  
  
1st Energy Level
589.30 kJ/mol   
99+
544.50 kJ/mol   
99+
2nd Energy Level
1,150.00 kJ/mol   
99+
1,070.00 kJ/mol   
99+
3rd Energy Level
2,194.00 kJ/mol   
99+
2,260.00 kJ/mol   
99+
4th Energy Level
4,120.00 kJ/mol   
33
3,990.00 kJ/mol   
37
Electrochemical Equivalent
2.08 g/amp-hr   
28
1.87 g/amp-hr   
34
Electron Work Function
Not Available   
2.70 eV   
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes   
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