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Chemical Properties of Thulium and Neptunium

Thulium
Neptunium
Chemical Properties of Neptunium and Thulium


Chemical Properties
Chemical Formula
Tm   
Np   
Isotopes
  
  
Known Isotopes
32   
7
20   
19
Electronegativity
  
  
Pauling Electronegativity
1.25   
35
1.36   
29
Allred Rochow Electronegativity
1.11   
29
1.22   
26
Electropositivity
  
  
Pauling Electropositivity
2.75   
19
2.64   
25
Ionization Energies
  
  
1st Energy Level
596.70 kJ/mol   
99+
604.50 kJ/mol   
99+
2nd Energy Level
1,160.00 kJ/mol   
99+
1,128.00 kJ/mol   
99+
3rd Energy Level
2,285.00 kJ/mol   
99+
1,997.00 kJ/mol   
99+
4th Energy Level
4,120.00 kJ/mol   
33
3,242.00 kJ/mol   
99+
Electrochemical Equivalent
2.10 g/amp-hr   
26
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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