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Chemical Properties of Terbium and Erbium


Chemical Properties of Erbium and Terbium


Chemical Properties

Chemical Formula
Tb   
Er   

Isotopes
  
  

Known Isotopes
26   
13
31   
8

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.24   
36

Allred Rochow Electronegativity
1.10   
30
1.11   
29

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.76   
18

Ionization Energies
  
  

1st Energy Level
603.40 kJ/mol   
99+
589.30 kJ/mol   
99+

2nd Energy Level
1,174.80 kJ/mol   
99+
1,150.00 kJ/mol   
99+

3rd Energy Level
2,417.00 kJ/mol   
99+
2,194.00 kJ/mol   
99+

4th Energy Level
4,203.00 kJ/mol   
31
4,120.00 kJ/mol   
33

Electrochemical Equivalent
1.98 g/amp-hr   
31
2.08 g/amp-hr   
28

Electron Work Function
3.00 eV   
36
Not Available   

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   

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