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Chemical Properties of Tantalum and Technetium


Chemical Properties of Technetium and Tantalum


Chemical Properties

Chemical Formula
Ta   
Tc   

Isotopes
  
  

Known Isotopes
31   
8
18   
21

Electronegativity
  
  

Pauling Electronegativity
1.50   
27
1.90   
11

Allred Rochow Electronegativity
1.33   
22
1.36   
20

Allen Electronegativity
1.34   
33
1.51   
28

Electropositivity
  
  

Pauling Electropositivity
2.50   
27
2.10   
99+

Ionization Energies
  
  

1st Energy Level
761.00 kJ/mol   
18
702.00 kJ/mol   
36

2nd Energy Level
1,500.00 kJ/mol   
40
1,470.00 kJ/mol   
99+

3rd Energy Level
Not Available   
2,850.00 kJ/mol   
33

Electrochemical Equivalent
1.35 g/amp-hr   
99+
0.52 g/amp-hr   
99+

Electron Work Function
4.25 eV   
21
Not Available   

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

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