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Chemical Properties of Neptunium and 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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