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Chemical Properties of Technetium and Neptunium

Technetium
Neptunium
Chemical Properties of Neptunium and Technetium


Chemical Properties
Chemical Formula
Tc   
Np   
Isotopes
  
  
Known Isotopes
18   
21
20   
19
Electronegativity
  
  
Pauling Electronegativity
1.90   
11
1.36   
29
Allred Rochow Electronegativity
1.36   
20
1.22   
26
Allen Electronegativity
1.51   
28
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.10   
99+
2.64   
25
Ionization Energies
  
  
1st Energy Level
702.00 kJ/mol   
36
604.50 kJ/mol   
99+
2nd Energy Level
1,470.00 kJ/mol   
99+
1,128.00 kJ/mol   
99+
3rd Energy Level
2,850.00 kJ/mol   
33
1,997.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,242.00 kJ/mol   
99+
Electrochemical Equivalent
0.52 g/amp-hr   
99+
1.77 g/amp-hr   
39
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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