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Chemical Properties of Promethium and Promethium

Promethium
Promethium
Chemical Properties of Promethium and Promethium


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