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Chemical Properties of Promethium and Lutetium

Promethium
Lutetium
Chemical Properties of Lutetium and Promethium


Chemical Properties
Chemical Formula
Pm   
Lu   
Isotopes
  
  
Known Isotopes
27   
12
35   
4
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.27   
34
Allred Rochow Electronegativity
1.07   
32
1.14   
28
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.73   
20
Ionization Energies
  
  
1st Energy Level
540.00 kJ/mol   
99+
523.50 kJ/mol   
99+
2nd Energy Level
1,050.00 kJ/mol   
99+
1,340.00 kJ/mol   
99+
3rd Energy Level
2,150.00 kJ/mol   
99+
2,022.30 kJ/mol   
99+
4th Energy Level
3,970.00 kJ/mol   
38
4,370.00 kJ/mol   
28
5th Energy Level
Not Available   
6,445.00 kJ/mol   
21
Electrochemical Equivalent
1.80 g/amp-hr   
36
2.18 g/amp-hr   
23
Electron Work Function
Not Available   
3.30 eV   
33
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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Lanthanide Metals

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