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Chemical Properties of Actinium and Ytterbium

Actinium
Ytterbium
Chemical Properties of Ytterbium and Actinium


Chemical Properties
Chemical Formula
Ac   
Yb   
Isotopes
  
  
Known Isotopes
29   
10
30   
9
Electronegativity
  
  
Pauling Electronegativity
1.10   
99+
Not Available   
Allred Rochow Electronegativity
1.00   
36
1.06   
33
Electropositivity
  
  
Pauling Electropositivity
2.90   
10
Not Available   
Ionization Energies
  
  
1st Energy Level
499.00 kJ/mol   
99+
603.40 kJ/mol   
99+
2nd Energy Level
1,170.00 kJ/mol   
99+
1,174.80 kJ/mol   
99+
3rd Energy Level
1,900.00 kJ/mol   
99+
2,417.00 kJ/mol   
99+
4th Energy Level
4,700.00 kJ/mol   
23
4,203.00 kJ/mol   
31
Electrochemical Equivalent
2.82 g/amp-hr   
18
2.15 g/amp-hr   
25
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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