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Chemical Properties of Uranium and Erbium

Uranium
Erbium
Chemical Properties of Erbium and Uranium


Chemical Properties
Chemical Formula
U   
Er   
Isotopes
  
  
Known Isotopes
25   
14
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.38   
28
1.24   
36
Allred Rochow Electronegativity
1.22   
26
1.11   
29
Electropositivity
  
  
Pauling Electropositivity
2.62   
26
2.76   
18
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol   
99+
589.30 kJ/mol   
99+
2nd Energy Level
1,420.00 kJ/mol   
99+
1,150.00 kJ/mol   
99+
3rd Energy Level
1,900.00 kJ/mol   
99+
2,194.00 kJ/mol   
99+
4th Energy Level
3,145.00 kJ/mol   
99+
4,120.00 kJ/mol   
33
Electrochemical Equivalent
1.48 g/amp-hr   
99+
2.08 g/amp-hr   
28
Electron Work Function
3.63 eV   
30
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Solubility   
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