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Chemical Properties of Protactinium and Cerium

Protactinium
Cerium
Chemical Properties of Cerium and Protactinium


Chemical Properties
Chemical Formula
Pa   
Ce   
Isotopes
  
  
Known Isotopes
27   
12
30   
9
Electronegativity
  
  
Pauling Electronegativity
1.50   
27
1.12   
99+
Allred Rochow Electronegativity
1.14   
28
1.08   
31
Electropositivity
  
  
Pauling Electropositivity
2.50   
27
2.88   
11
Ionization Energies
  
  
1st Energy Level
568.00 kJ/mol   
99+
534.40 kJ/mol   
99+
2nd Energy Level
1,128.00 kJ/mol   
99+
1,050.00 kJ/mol   
99+
3rd Energy Level
1,814.00 kJ/mol   
99+
1,949.00 kJ/mol   
99+
4th Energy Level
2,991.00 kJ/mol   
99+
3,547.00 kJ/mol   
99+
5th Energy Level
Not Available   
6,325.00 kJ/mol   
22
6th Energy Level
Not Available   
7,490.00 kJ/mol   
21
Electrochemical Equivalent
1.72 g/amp-hr   
99+
1.74 g/amp-hr   
99+
Electron Work Function
Not Available   
2.84 eV   
39
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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