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Chemical Properties of Protactinium and Technetium

Protactinium
Technetium
Chemical Properties of Technetium and Protactinium


Chemical Properties
Chemical Formula
Pa   
Tc   
Isotopes
  
  
Known Isotopes
27   
12
18   
21
Electronegativity
  
  
Pauling Electronegativity
1.50   
27
1.90   
11
Allred Rochow Electronegativity
1.14   
28
1.36   
20
Allen Electronegativity
Not Available   
1.51   
28
Electropositivity
  
  
Pauling Electropositivity
2.50   
27
2.10   
99+
Ionization Energies
  
  
1st Energy Level
568.00 kJ/mol   
99+
702.00 kJ/mol   
36
2nd Energy Level
1,128.00 kJ/mol   
99+
1,470.00 kJ/mol   
99+
3rd Energy Level
1,814.00 kJ/mol   
99+
2,850.00 kJ/mol   
33
4th Energy Level
2,991.00 kJ/mol   
99+
Not Available   
Electrochemical Equivalent
1.72 g/amp-hr   
99+
0.52 g/amp-hr   
99+
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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