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Chemical Properties of Protactinium and Lawrencium

Protactinium
Lawrencium
Chemical Properties of Lawrencium and Protactinium


Chemical Properties
Chemical Formula
Pa   
Lr   
Isotopes
  
  
Known Isotopes
27   
12
10   
28
Electronegativity
  
  
Pauling Electronegativity
1.50   
27
Not Available   
Allred Rochow Electronegativity
1.14   
28
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.50   
27
Not Available   
Ionization Energies
  
  
1st Energy Level
568.00 kJ/mol   
99+
470.00 kJ/mol   
99+
2nd Energy Level
1,128.00 kJ/mol   
99+
1,428.00 kJ/mol   
99+
3rd Energy Level
1,814.00 kJ/mol   
99+
2,228.00 kJ/mol   
99+
4th Energy Level
2,991.00 kJ/mol   
99+
4,910.00 kJ/mol   
21
Electrochemical Equivalent
1.72 g/amp-hr   
99+
3.23 g/amp-hr   
11
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes   
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