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Chemical Properties of Neptunium and Neodymium

Neptunium
Neodymium
Chemical Properties of Neodymium and Neptunium


Chemical Properties
Chemical Formula
Np   
Nd   
Isotopes
  
  
Known Isotopes
20   
19
30   
9
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
1.14   
99+
Allred Rochow Electronegativity
1.22   
26
1.07   
32
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
2.86   
13
Ionization Energies
  
  
1st Energy Level
604.50 kJ/mol   
99+
533.10 kJ/mol   
99+
2nd Energy Level
1,128.00 kJ/mol   
99+
1,040.00 kJ/mol   
99+
3rd Energy Level
1,997.00 kJ/mol   
99+
2,130.00 kJ/mol   
99+
4th Energy Level
3,242.00 kJ/mol   
99+
3,900.00 kJ/mol   
99+
Electrochemical Equivalent
1.77 g/amp-hr   
39
1.79 g/amp-hr   
37
Electron Work Function
Not Available   
3.20 eV   
34
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Chemical Stability, Corrosion, Flammable, Ionization   
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