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Chemical Properties of Lanthanum and Roentgenium

Lanthanum
Roentgenium
Chemical Properties of Roentgenium and Lanthanum


Chemical Properties
Chemical Formula
La   
Rg   
Isotopes
  
  
Known Isotopes
31   
8
1   
34
Electronegativity
  
  
Pauling Electronegativity
1.10   
99+
Not Available   
Allred Rochow Electronegativity
1.08   
31
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.90   
10
Not Available   
Ionization Energies
  
  
1st Energy Level
538.10 kJ/mol   
99+
1,022.70 kJ/mol   
3
2nd Energy Level
1,067.00 kJ/mol   
99+
2,074.40 kJ/mol   
10
3rd Energy Level
1,850.30 kJ/mol   
99+
3,077.90 kJ/mol   
24
4th Energy Level
4,819.00 kJ/mol   
22
4,052.40 kJ/mol   
36
5th Energy Level
5,940.00 kJ/mol   
25
5,306.70 kJ/mol   
31
Electrochemical Equivalent
1.73 g/amp-hr   
99+
Not Available   
Electron Work Function
3.50 eV   
31
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
NA   
Atomic >>
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