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Chemical Properties of Lutetium and Tantalum

Lutetium
Tantalum
Chemical Properties of Tantalum and Lutetium


Chemical Properties
Chemical Formula
Lu   
Ta   
Isotopes
  
  
Known Isotopes
35   
4
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.27   
34
1.50   
27
Allred Rochow Electronegativity
1.14   
28
1.33   
22
Allen Electronegativity
Not Available   
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
2.73   
20
2.50   
27
Ionization Energies
  
  
1st Energy Level
523.50 kJ/mol   
99+
761.00 kJ/mol   
18
2nd Energy Level
1,340.00 kJ/mol   
99+
1,500.00 kJ/mol   
40
3rd Energy Level
2,022.30 kJ/mol   
99+
Not Available   
4th Energy Level
4,370.00 kJ/mol   
28
Not Available   
5th Energy Level
6,445.00 kJ/mol   
21
Not Available   
Electrochemical Equivalent
2.18 g/amp-hr   
23
1.35 g/amp-hr   
99+
Electron Work Function
3.30 eV   
33
4.25 eV   
21
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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