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Chemical Properties of Neptunium and Copernicium


Chemical Properties of Copernicium and Neptunium


Chemical Properties

Chemical Formula
Np   
Cn   

Isotopes
  
  

Known Isotopes
20   
19
1   
34

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+
1,154.90 kJ/mol   
2

2nd Energy Level
1,128.00 kJ/mol   
99+
2,170.00 kJ/mol   
9

3rd Energy Level
1,997.00 kJ/mol   
99+
4,245.40 kJ/mol   
9

4th Energy Level
3,242.00 kJ/mol   
99+
5,499.70 kJ/mol   
14

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   
Ionization, Radioactive Isotopes, Radioactivity   

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