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Chemical Properties of Terbium and Lanthanum

Terbium
Lanthanum
Chemical Properties of Lanthanum and Terbium


Chemical Properties
Chemical Formula
Tb   
La   
Isotopes
  
  
Known Isotopes
26   
13
31   
8
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.10   
99+
Allred Rochow Electronegativity
1.10   
30
1.08   
31
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.90   
10
Ionization Energies
  
  
1st Energy Level
603.40 kJ/mol   
99+
538.10 kJ/mol   
99+
2nd Energy Level
1,174.80 kJ/mol   
99+
1,067.00 kJ/mol   
99+
3rd Energy Level
2,417.00 kJ/mol   
99+
1,850.30 kJ/mol   
99+
4th Energy Level
4,203.00 kJ/mol   
31
4,819.00 kJ/mol   
22
5th Energy Level
Not Available   
5,940.00 kJ/mol   
25
Electrochemical Equivalent
1.98 g/amp-hr   
31
1.73 g/amp-hr   
99+
Electron Work Function
3.00 eV   
36
3.50 eV   
31
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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