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Chemical Properties of Einsteinium and Promethium

Einsteinium
Promethium
Chemical Properties of Promethium and Einsteinium


Chemical Properties
Chemical Formula
Es   
Pm   
Isotopes
  
  
Known Isotopes
16   
23
27   
12
Electronegativity
  
  
Pauling Electronegativity
1.54   
26
Not Available   
Allred Rochow Electronegativity
1.20   
27
1.07   
32
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
Not Available   
Ionization Energies
  
  
1st Energy Level
619.00 kJ/mol   
99+
540.00 kJ/mol   
99+
2nd Energy Level
1,216.00 kJ/mol   
99+
1,050.00 kJ/mol   
99+
3rd Energy Level
2,334.00 kJ/mol   
99+
2,150.00 kJ/mol   
99+
4th Energy Level
3,734.00 kJ/mol   
99+
3,970.00 kJ/mol   
38
Electrochemical Equivalent
4.74 g/amp-hr   
5
1.80 g/amp-hr   
36
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Solubility   
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