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Chemical Properties of Francium and Protactinium

Francium
Protactinium
Chemical Properties of Protactinium and Francium


Chemical Properties
Chemical Formula
Fr   
Pa   
Isotopes
  
  
Known Isotopes
33   
6
27   
12
Electronegativity
  
  
Pauling Electronegativity
0.70   
99+
1.50   
27
Allred Rochow Electronegativity
0.86   
99+
1.14   
28
Mulliken-Jaffe Electronegativity
0.68   
25
Not Available   
Allen Electronegativity
0.67   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.30   
1
2.50   
27
Ionization Energies
  
  
1st Energy Level
380.00 kJ/mol   
99+
568.00 kJ/mol   
99+
2nd Energy Level
Not Available   
1,128.00 kJ/mol   
99+
3rd Energy Level
Not Available   
1,814.00 kJ/mol   
99+
4th Energy Level
Not Available   
2,991.00 kJ/mol   
99+
Electrochemical Equivalent
8.32 g/amp-hr   
1
1.72 g/amp-hr   
99+
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
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