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Chemical Properties of Ytterbium and Protactinium


Chemical Properties of Protactinium and Ytterbium


Chemical Properties

Chemical Formula
Yb   
Pa   

Isotopes
  
  

Known Isotopes
30   
9
27   
12

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.50   
27

Allred Rochow Electronegativity
1.06   
33
1.14   
28

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.50   
27

Ionization Energies
  
  

1st Energy Level
603.40 kJ/mol   
99+
568.00 kJ/mol   
99+

2nd Energy Level
1,174.80 kJ/mol   
99+
1,128.00 kJ/mol   
99+

3rd Energy Level
2,417.00 kJ/mol   
99+
1,814.00 kJ/mol   
99+

4th Energy Level
4,203.00 kJ/mol   
31
2,991.00 kJ/mol   
99+

Electrochemical Equivalent
2.15 g/amp-hr   
25
1.72 g/amp-hr   
99+

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   

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