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Chemical Properties of Polonium and Neptunium


Chemical Properties of Neptunium and Polonium


Chemical Properties

Chemical Formula
Po   
Np   

Isotopes
  
  

Known Isotopes
29   
10
20   
19

Electronegativity
  
  

Pauling Electronegativity
2.00   
7
1.36   
29

Allred Rochow Electronegativity
1.76   
2
1.22   
26

Mulliken-Jaffe Electronegativity
2.48   
1
Not Available   

Allen Electronegativity
2.19   
2
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.00   
99+
2.64   
25

Ionization Energies
  
  

1st Energy Level
812.10 kJ/mol   
14
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
3.90 g/amp-hr   
8
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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