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Chemical Properties of Francium and Erbium

Francium
Erbium
Chemical Properties of Erbium and Francium


Chemical Properties
Chemical Formula
Fr   
Er   
Isotopes
  
  
Known Isotopes
33   
6
31   
8
Electronegativity
  
  
Pauling Electronegativity
0.70   
99+
1.24   
36
Allred Rochow Electronegativity
0.86   
99+
1.11   
29
Mulliken-Jaffe Electronegativity
0.68   
25
Not Available   
Allen Electronegativity
0.67   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.30   
1
2.76   
18
Ionization Energies
  
  
1st Energy Level
380.00 kJ/mol   
99+
589.30 kJ/mol   
99+
2nd Energy Level
Not Available   
1,150.00 kJ/mol   
99+
3rd Energy Level
Not Available   
2,194.00 kJ/mol   
99+
4th Energy Level
Not Available   
4,120.00 kJ/mol   
33
Electrochemical Equivalent
8.32 g/amp-hr   
1
2.08 g/amp-hr   
28
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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