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Chemical Properties of Erbium and Polonium

Erbium
Polonium
Chemical Properties of Polonium and Erbium


Chemical Properties
Chemical Formula
Er   
Po   
Isotopes
  
  
Known Isotopes
31   
8
29   
10
Electronegativity
  
  
Pauling Electronegativity
1.24   
36
2.00   
7
Allred Rochow Electronegativity
1.11   
29
1.76   
2
Mulliken-Jaffe Electronegativity
Not Available   
2.48   
1
Allen Electronegativity
Not Available   
2.19   
2
Electropositivity
  
  
Pauling Electropositivity
2.76   
18
2.00   
99+
Ionization Energies
  
  
1st Energy Level
589.30 kJ/mol   
99+
812.10 kJ/mol   
14
2nd Energy Level
1,150.00 kJ/mol   
99+
Not Available   
3rd Energy Level
2,194.00 kJ/mol   
99+
Not Available   
4th Energy Level
4,120.00 kJ/mol   
33
Not Available   
Electrochemical Equivalent
2.08 g/amp-hr   
28
3.90 g/amp-hr   
8
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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