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Chemical Properties of Holmium and Promethium


Chemical Properties of Promethium and Holmium


Chemical Properties

Chemical Formula
Ho   
Pm   

Isotopes
  
  

Known Isotopes
34   
5
27   
12

Electronegativity
  
  

Pauling Electronegativity
1.23   
37
Not Available   

Allred Rochow Electronegativity
1.10   
30
1.07   
32

Electropositivity
  
  

Pauling Electropositivity
2.77   
17
Not Available   

Ionization Energies
  
  

1st Energy Level
581.00 kJ/mol   
99+
540.00 kJ/mol   
99+

2nd Energy Level
1,140.00 kJ/mol   
99+
1,050.00 kJ/mol   
99+

3rd Energy Level
2,204.00 kJ/mol   
99+
2,150.00 kJ/mol   
99+

4th Energy Level
4,100.00 kJ/mol   
34
3,970.00 kJ/mol   
38

Electrochemical Equivalent
2.02 g/amp-hr   
29
1.80 g/amp-hr   
36

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   

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