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Chemical Properties of Protactinium and Rhenium

Protactinium
Rhenium
Chemical Properties of Rhenium and Protactinium


Chemical Properties
Chemical Formula
Pa   
Re   
Isotopes
  
  
Known Isotopes
27   
12
33   
6
Electronegativity
  
  
Pauling Electronegativity
1.50   
27
1.90   
11
Allred Rochow Electronegativity
1.14   
28
1.46   
15
Allen Electronegativity
Not Available   
1.60   
21
Electropositivity
  
  
Pauling Electropositivity
2.50   
27
2.10   
99+
Ionization Energies
  
  
1st Energy Level
568.00 kJ/mol   
99+
760.00 kJ/mol   
20
2nd Energy Level
1,128.00 kJ/mol   
99+
1,260.00 kJ/mol   
99+
3rd Energy Level
1,814.00 kJ/mol   
99+
2,510.00 kJ/mol   
99+
4th Energy Level
2,991.00 kJ/mol   
99+
3,640.00 kJ/mol   
99+
Electrochemical Equivalent
1.72 g/amp-hr   
99+
0.99 g/amp-hr   
99+
Electron Work Function
Not Available   
4.96 eV   
7
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Corrosion, Ionization, Radioactive Isotopes, Solubility   
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