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Chemical Properties of Neptunium and Holmium

Neptunium
Holmium
Chemical Properties of Holmium and Neptunium


Chemical Properties
Chemical Formula
Np   
Ho   
Isotopes
  
  
Known Isotopes
20   
19
34   
5
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
1.23   
37
Allred Rochow Electronegativity
1.22   
26
1.10   
30
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
2.77   
17
Ionization Energies
  
  
1st Energy Level
604.50 kJ/mol   
99+
581.00 kJ/mol   
99+
2nd Energy Level
1,128.00 kJ/mol   
99+
1,140.00 kJ/mol   
99+
3rd Energy Level
1,997.00 kJ/mol   
99+
2,204.00 kJ/mol   
99+
4th Energy Level
3,242.00 kJ/mol   
99+
4,100.00 kJ/mol   
34
Electrochemical Equivalent
1.77 g/amp-hr   
39
2.02 g/amp-hr   
29
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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