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Chemical Properties of Actinium and Holmium


Chemical Properties of Holmium and Actinium


Chemical Properties

Chemical Formula
Ac   
Ho   

Isotopes
  
  

Known Isotopes
29   
10
34   
5

Electronegativity
  
  

Pauling Electronegativity
1.10   
99+
1.23   
37

Allred Rochow Electronegativity
1.00   
36
1.10   
30

Electropositivity
  
  

Pauling Electropositivity
2.90   
10
2.77   
17

Ionization Energies
  
  

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

2nd Energy Level
1,170.00 kJ/mol   
99+
1,140.00 kJ/mol   
99+

3rd Energy Level
1,900.00 kJ/mol   
99+
2,204.00 kJ/mol   
99+

4th Energy Level
4,700.00 kJ/mol   
23
4,100.00 kJ/mol   
34

Electrochemical Equivalent
2.82 g/amp-hr   
18
2.02 g/amp-hr   
29

Electron Work Function
Not Available   
Not Available   

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

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