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Chemical Properties of Lawrencium and Promethium

Lawrencium
Promethium
Chemical Properties of Promethium and Lawrencium


Chemical Properties
Chemical Formula
Lr   
Pm   
Isotopes
  
  
Known Isotopes
10   
28
27   
12
Electronegativity
  
  
Allred Rochow Electronegativity
Not Available   
1.07   
32
Electropositivity
  
  
Ionization Energies
  
  
1st Energy Level
470.00 kJ/mol   
99+
540.00 kJ/mol   
99+
2nd Energy Level
1,428.00 kJ/mol   
99+
1,050.00 kJ/mol   
99+
3rd Energy Level
2,228.00 kJ/mol   
99+
2,150.00 kJ/mol   
99+
4th Energy Level
4,910.00 kJ/mol   
21
3,970.00 kJ/mol   
38
Electrochemical Equivalent
3.23 g/amp-hr   
11
1.80 g/amp-hr   
36
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes, Solubility   
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