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Chemical Properties of Cesium and Lanthanum

Cesium
Lanthanum
Chemical Properties of Lanthanum and Cesium


Chemical Properties
Chemical Formula
Cs   
La   
Isotopes
  
  
Known Isotopes
36   
3
31   
8
Electronegativity
  
  
Pauling Electronegativity
0.79   
99+
1.10   
99+
Sanderson Electronegativity
0.22   
33
Not Available   
Allred Rochow Electronegativity
0.86   
99+
1.08   
31
Mulliken-Jaffe Electronegativity
0.62   
26
Not Available   
Allen Electronegativity
0.66   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.21   
2
2.90   
10
Ionization Energies
  
  
1st Energy Level
375.70 kJ/mol   
99+
538.10 kJ/mol   
99+
2nd Energy Level
2,234.30 kJ/mol   
8
1,067.00 kJ/mol   
99+
3rd Energy Level
3,400.00 kJ/mol   
16
1,850.30 kJ/mol   
99+
4th Energy Level
Not Available   
4,819.00 kJ/mol   
22
5th Energy Level
Not Available   
5,940.00 kJ/mol   
25
Electrochemical Equivalent
4.96 g/amp-hr   
3
1.73 g/amp-hr   
99+
Electron Work Function
2.14 eV   
99+
3.50 eV   
31
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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