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Chemical Properties of Europium and Lanthanum

Europium
Lanthanum
Chemical Properties of Lanthanum and Europium


Chemical Properties
Chemical Formula
Eu   
La   
Isotopes
  
  
Known Isotopes
31   
8
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.20   
39
1.10   
99+
Sanderson Electronegativity
1.01   
22
Not Available   
Allred Rochow Electronegativity
Not Available   
1.08   
31
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.90   
10
Ionization Energies
  
  
1st Energy Level
547.10 kJ/mol   
99+
538.10 kJ/mol   
99+
2nd Energy Level
1,085.00 kJ/mol   
99+
1,067.00 kJ/mol   
99+
3rd Energy Level
2,404.00 kJ/mol   
99+
1,850.30 kJ/mol   
99+
4th Energy Level
4,120.00 kJ/mol   
33
4,819.00 kJ/mol   
22
5th Energy Level
Not Available   
5,940.00 kJ/mol   
25
Electrochemical Equivalent
1.89 g/amp-hr   
33
1.73 g/amp-hr   
99+
Electron Work Function
2.50 eV   
99+
3.50 eV   
31
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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