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Chemical Properties of Neptunium and Mercury

Neptunium
Mercury
Chemical Properties of Mercury and Neptunium


Chemical Properties
Chemical Formula
Np   
Hg   
Isotopes
  
  
Known Isotopes
20   
19
34   
5
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
2.00   
7
Sanderson Electronegativity
Not Available   
2.20   
7
Allred Rochow Electronegativity
1.22   
26
1.44   
17
Mulliken-Jaffe Electronegativity
Not Available   
1.81   
9
Allen Electronegativity
Not Available   
1.44   
30
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
2.00   
99+
Ionization Energies
  
  
1st Energy Level
604.50 kJ/mol   
99+
1,007.10 kJ/mol   
4
2nd Energy Level
1,128.00 kJ/mol   
99+
1,810.00 kJ/mol   
20
3rd Energy Level
1,997.00 kJ/mol   
99+
3,300.00 kJ/mol   
20
4th Energy Level
3,242.00 kJ/mol   
99+
Not Available   
Electrochemical Equivalent
1.77 g/amp-hr   
39
3.74 g/amp-hr   
10
Electron Work Function
Not Available   
4.49 eV   
15
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Flammability, Ionization, Solubility   
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