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Chemical Properties of Ytterbium and Neptunium

Ytterbium
Neptunium
Chemical Properties of Neptunium and Ytterbium


Chemical Properties
Chemical Formula
Yb   
Np   
Isotopes
  
  
Known Isotopes
30   
9
20   
19
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.36   
29
Allred Rochow Electronegativity
1.06   
33
1.22   
26
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.64   
25
Ionization Energies
  
  
1st Energy Level
603.40 kJ/mol   
99+
604.50 kJ/mol   
99+
2nd Energy Level
1,174.80 kJ/mol   
99+
1,128.00 kJ/mol   
99+
3rd Energy Level
2,417.00 kJ/mol   
99+
1,997.00 kJ/mol   
99+
4th Energy Level
4,203.00 kJ/mol   
31
3,242.00 kJ/mol   
99+
Electrochemical Equivalent
2.15 g/amp-hr   
25
1.77 g/amp-hr   
39
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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