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Chemical Properties of Technetium and Tantalum

Technetium
Tantalum
Chemical Properties of Tantalum and Technetium


Chemical Properties
Chemical Formula
Tc   
Ta   
Isotopes
  
  
Known Isotopes
18   
21
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.90   
11
1.50   
27
Allred Rochow Electronegativity
1.36   
20
1.33   
22
Allen Electronegativity
1.51   
28
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
2.10   
99+
2.50   
27
Ionization Energies
  
  
1st Energy Level
702.00 kJ/mol   
36
761.00 kJ/mol   
18
2nd Energy Level
1,470.00 kJ/mol   
99+
1,500.00 kJ/mol   
40
3rd Energy Level
2,850.00 kJ/mol   
33
Not Available   
Electrochemical Equivalent
0.52 g/amp-hr   
99+
1.35 g/amp-hr   
99+
Electron Work Function
Not Available   
4.25 eV   
21
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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