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Chemical Properties of Promethium and 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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