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Chemical Properties of Francium and Neptunium


Chemical Properties of Neptunium and Francium


Chemical Properties

Chemical Formula
Fr   
Np   

Isotopes
  
  

Known Isotopes
33   
6
20   
19

Electronegativity
  
  

Pauling Electronegativity
0.70   
99+
1.36   
29

Allred Rochow Electronegativity
0.86   
99+
1.22   
26

Mulliken-Jaffe Electronegativity
0.68   
25
Not Available   

Allen Electronegativity
0.67   
99+
Not Available   

Electropositivity
  
  

Pauling Electropositivity
3.30   
1
2.64   
25

Ionization Energies
  
  

1st Energy Level
380.00 kJ/mol   
99+
604.50 kJ/mol   
99+

2nd Energy Level
Not Available   
1,128.00 kJ/mol   
99+

3rd Energy Level
Not Available   
1,997.00 kJ/mol   
99+

4th Energy Level
Not Available   
3,242.00 kJ/mol   
99+

Electrochemical Equivalent
8.32 g/amp-hr   
1
1.77 g/amp-hr   
39

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   

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