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Chemical Properties of Rhenium and Tantalum


Chemical Properties of Tantalum and Rhenium


Chemical Properties

Chemical Formula
Re   
Ta   

Isotopes
  
  

Known Isotopes
33   
6
31   
8

Electronegativity
  
  

Pauling Electronegativity
1.90   
11
1.50   
27

Allred Rochow Electronegativity
1.46   
15
1.33   
22

Allen Electronegativity
1.60   
21
1.34   
33

Electropositivity
  
  

Pauling Electropositivity
2.10   
99+
2.50   
27

Ionization Energies
  
  

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

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

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

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

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

Electron Work Function
4.96 eV   
7
4.25 eV   
21

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

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