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Chemical Properties of Tantalum and Rhenium


Chemical Properties of Rhenium and Tantalum


Chemical Properties

Chemical Formula
Ta   
Re   

Isotopes
  
  

Known Isotopes
31   
8
33   
6

Electronegativity
  
  

Pauling Electronegativity
1.50   
27
1.90   
11

Allred Rochow Electronegativity
1.33   
22
1.46   
15

Allen Electronegativity
1.34   
33
1.60   
21

Electropositivity
  
  

Pauling Electropositivity
2.50   
27
2.10   
99+

Ionization Energies
  
  

1st Energy Level
761.00 kJ/mol   
18
760.00 kJ/mol   
20

2nd Energy Level
1,500.00 kJ/mol   
40
1,260.00 kJ/mol   
99+

3rd Energy Level
Not Available   
2,510.00 kJ/mol   
99+

4th Energy Level
Not Available   
3,640.00 kJ/mol   
99+

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

Electron Work Function
4.25 eV   
21
4.96 eV   
7

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

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