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Chemical Properties of Ytterbium and Fermium

Ytterbium
Fermium
Chemical Properties of Fermium and Ytterbium


Chemical Properties
Chemical Formula
Yb   
Fm   
Isotopes
  
  
Known Isotopes
30   
9
18   
21
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.30   
32
Allred Rochow Electronegativity
1.06   
33
1.20   
27
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.70   
22
Ionization Energies
  
  
1st Energy Level
603.40 kJ/mol   
99+
627.00 kJ/mol   
99+
2nd Energy Level
1,174.80 kJ/mol   
99+
1,225.00 kJ/mol   
99+
3rd Energy Level
2,417.00 kJ/mol   
99+
2,363.00 kJ/mol   
99+
4th Energy Level
4,203.00 kJ/mol   
31
3,792.00 kJ/mol   
99+
Electrochemical Equivalent
2.15 g/amp-hr   
25
3.20 g/amp-hr   
13
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
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