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Chemical Properties of Neptunium and Curium

Neptunium
Curium
Chemical Properties of Curium and Neptunium


Chemical Properties
Chemical Formula
Np   
Cm   
Isotopes
  
  
Known Isotopes
20   
19
15   
24
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
1.30   
32
Allred Rochow Electronegativity
1.22   
26
1.20   
27
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
2.70   
22
Ionization Energies
  
  
1st Energy Level
604.50 kJ/mol   
99+
581.00 kJ/mol   
99+
2nd Energy Level
1,128.00 kJ/mol   
99+
1,196.00 kJ/mol   
99+
3rd Energy Level
1,997.00 kJ/mol   
99+
2,026.00 kJ/mol   
99+
4th Energy Level
3,242.00 kJ/mol   
99+
3,550.00 kJ/mol   
99+
Electrochemical Equivalent
1.77 g/amp-hr   
39
3.07 g/amp-hr   
16
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes   
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