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Chemical Properties of Lanthanum and Francium

Lanthanum
Francium
Chemical Properties of Francium and Lanthanum


Chemical Properties
Chemical Formula
La   
Fr   
Isotopes
  
  
Known Isotopes
31   
8
33   
6
Electronegativity
  
  
Pauling Electronegativity
1.10   
99+
0.70   
99+
Allred Rochow Electronegativity
1.08   
31
0.86   
99+
Mulliken-Jaffe Electronegativity
Not Available   
0.68   
25
Allen Electronegativity
Not Available   
0.67   
99+
Electropositivity
  
  
Pauling Electropositivity
2.90   
10
3.30   
1
Ionization Energies
  
  
1st Energy Level
538.10 kJ/mol   
99+
380.00 kJ/mol   
99+
2nd Energy Level
1,067.00 kJ/mol   
99+
Not Available   
3rd Energy Level
1,850.30 kJ/mol   
99+
Not Available   
4th Energy Level
4,819.00 kJ/mol   
22
Not Available   
5th Energy Level
5,940.00 kJ/mol   
25
Not Available   
Electrochemical Equivalent
1.73 g/amp-hr   
99+
8.32 g/amp-hr   
1
Electron Work Function
3.50 eV   
31
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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