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Chemical Properties of Neptunium and Meitnerium

Neptunium
Meitnerium
Chemical Properties of Meitnerium and Neptunium


Chemical Properties
Chemical Formula
Np   
Mt   
Isotopes
  
  
Known Isotopes
20   
19
4   
33
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
Not Available   
Allred Rochow Electronegativity
1.22   
26
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
Not Available   
Ionization Energies
  
  
1st Energy Level
604.50 kJ/mol   
99+
800.80 kJ/mol   
15
2nd Energy Level
1,128.00 kJ/mol   
99+
1,823.60 kJ/mol   
17
3rd Energy Level
1,997.00 kJ/mol   
99+
2,904.20 kJ/mol   
31
4th Energy Level
3,242.00 kJ/mol   
99+
3,859.40 kJ/mol   
99+
5th Energy Level
Not Available   
4,920.80 kJ/mol   
35
Electrochemical Equivalent
1.77 g/amp-hr   
39
Not Available   
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
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