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Chemical Properties of Thorium and Erbium


Chemical Properties of Erbium and Thorium


Chemical Properties

Chemical Formula
Th   
Er   

Isotopes
  
  

Known Isotopes
28   
11
31   
8

Electronegativity
  
  

Pauling Electronegativity
1.30   
32
1.24   
36

Allred Rochow Electronegativity
1.11   
29
1.11   
29

Electropositivity
  
  

Pauling Electropositivity
2.70   
22
2.76   
18

Ionization Energies
  
  

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

2nd Energy Level
1,110.00 kJ/mol   
99+
1,150.00 kJ/mol   
99+

3rd Energy Level
1,978.00 kJ/mol   
99+
2,194.00 kJ/mol   
99+

4th Energy Level
2,780.00 kJ/mol   
99+
4,120.00 kJ/mol   
33

Electrochemical Equivalent
2.16 g/amp-hr   
24
2.08 g/amp-hr   
28

Electron Work Function
3.41 eV   
32
Not Available   

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

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