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Chemical Properties of Radium and Lanthanum

Radium
Lanthanum
Chemical Properties of Lanthanum and Radium


Chemical Properties
Chemical Formula
Ra   
La   
Isotopes
  
  
Known Isotopes
33   
6
31   
8
Electronegativity
  
  
Pauling Electronegativity
0.90   
99+
1.10   
99+
Allred Rochow Electronegativity
0.97   
38
1.08   
31
Mulliken-Jaffe Electronegativity
0.92   
20
Not Available   
Allen Electronegativity
0.89   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.10   
5
2.90   
10
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol   
99+
538.10 kJ/mol   
99+
2nd Energy Level
979.00 kJ/mol   
99+
1,067.00 kJ/mol   
99+
3rd Energy Level
Not Available   
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
4.22 g/amp-hr   
6
1.73 g/amp-hr   
99+
Electron Work Function
Not Available   
3.50 eV   
31
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Solubility   
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