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Chemical Properties of Lanthanum and Europium

Lanthanum
Europium
Chemical Properties of Europium and Lanthanum


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