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Chemical Properties of Samarium and Europium

Samarium
Europium
Chemical Properties of Europium and Samarium


Chemical Properties
Chemical Formula
Sm   
Eu   
Isotopes
  
  
Known Isotopes
30   
9
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.17   
40
1.20   
39
Sanderson Electronegativity
Not Available   
1.01   
22
Allred Rochow Electronegativity
1.07   
32
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.83   
14
Not Available   
Ionization Energies
  
  
1st Energy Level
544.50 kJ/mol   
99+
547.10 kJ/mol   
99+
2nd Energy Level
1,070.00 kJ/mol   
99+
1,085.00 kJ/mol   
99+
3rd Energy Level
2,260.00 kJ/mol   
99+
2,404.00 kJ/mol   
99+
4th Energy Level
3,990.00 kJ/mol   
37
4,120.00 kJ/mol   
33
Electrochemical Equivalent
1.87 g/amp-hr   
34
1.89 g/amp-hr   
33
Electron Work Function
2.70 eV   
99+
2.50 eV   
99+
Other Chemical Properties
Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes, Solubility   
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