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Chemical Properties of Terbium and Actinium

Terbium
Actinium
Chemical Properties of Actinium and Terbium


Chemical Properties
Chemical Formula
Tb   
Ac   
Isotopes
  
  
Known Isotopes
26   
13
29   
10
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.10   
99+
Allred Rochow Electronegativity
1.10   
30
1.00   
36
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.90   
10
Ionization Energies
  
  
1st Energy Level
603.40 kJ/mol   
99+
499.00 kJ/mol   
99+
2nd Energy Level
1,174.80 kJ/mol   
99+
1,170.00 kJ/mol   
99+
3rd Energy Level
2,417.00 kJ/mol   
99+
1,900.00 kJ/mol   
99+
4th Energy Level
4,203.00 kJ/mol   
31
4,700.00 kJ/mol   
23
Electrochemical Equivalent
1.98 g/amp-hr   
31
2.82 g/amp-hr   
18
Electron Work Function
3.00 eV   
36
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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