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Chemical Properties of Holmium and Hafnium

Holmium
Hafnium
Chemical Properties of Hafnium and Holmium


Chemical Properties
Chemical Formula
Ho   
Hf   
Isotopes
  
  
Known Isotopes
34   
5
32   
7
Electronegativity
  
  
Pauling Electronegativity
1.23   
37
1.30   
32
Allred Rochow Electronegativity
1.10   
30
1.23   
25
Allen Electronegativity
Not Available   
1.16   
37
Electropositivity
  
  
Pauling Electropositivity
2.77   
17
2.70   
22
Ionization Energies
  
  
1st Energy Level
581.00 kJ/mol   
99+
658.50 kJ/mol   
40
2nd Energy Level
1,140.00 kJ/mol   
99+
1,440.00 kJ/mol   
99+
3rd Energy Level
2,204.00 kJ/mol   
99+
2,250.00 kJ/mol   
99+
4th Energy Level
4,100.00 kJ/mol   
34
3,216.00 kJ/mol   
99+
Electrochemical Equivalent
2.02 g/amp-hr   
29
1.66 g/amp-hr   
99+
Electron Work Function
Not Available   
3.90 eV   
27
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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