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Chemical Properties of Erbium and Thorium


Chemical Properties of Thorium and Erbium


Chemical Properties

Chemical Formula
Er   
Th   

Isotopes
  
  

Known Isotopes
31   
8
28   
11

Electronegativity
  
  

Pauling Electronegativity
1.24   
36
1.30   
32

Allred Rochow Electronegativity
1.11   
29
1.11   
29

Electropositivity
  
  

Pauling Electropositivity
2.76   
18
2.70   
22

Ionization Energies
  
  

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

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

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

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

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

Electron Work Function
Not Available   
3.41 eV   
32

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

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