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Chemical Properties of Neptunium and Seaborgium

Neptunium
Seaborgium
Chemical Properties of Seaborgium and Neptunium


Chemical Properties
Chemical Formula
Np   
Sg   
Isotopes
  
  
Known Isotopes
20   
19
9   
29
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
Not Available   
Allred Rochow Electronegativity
1.22   
26
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
Not Available   
Ionization Energies
  
  
1st Energy Level
604.50 kJ/mol   
99+
757.40 kJ/mol   
21
2nd Energy Level
1,128.00 kJ/mol   
99+
1,732.90 kJ/mol   
28
3rd Energy Level
1,997.00 kJ/mol   
99+
2,483.50 kJ/mol   
99+
4th Energy Level
3,242.00 kJ/mol   
99+
3,415.60 kJ/mol   
99+
5th Energy Level
Not Available   
4,561.80 kJ/mol   
38
6th Energy Level
Not Available   
5,715.80 kJ/mol   
25
Electrochemical Equivalent
1.77 g/amp-hr   
39
Not Available   
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
NA   
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