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Chemical Properties of Technetium and Lanthanum

Technetium
Lanthanum
Chemical Properties of Lanthanum and Technetium


Chemical Properties
Chemical Formula
Tc   
La   
Isotopes
  
  
Known Isotopes
18   
21
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.90   
11
1.10   
99+
Allred Rochow Electronegativity
1.36   
20
1.08   
31
Allen Electronegativity
1.51   
28
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.10   
99+
2.90   
10
Ionization Energies
  
  
1st Energy Level
702.00 kJ/mol   
36
538.10 kJ/mol   
99+
2nd Energy Level
1,470.00 kJ/mol   
99+
1,067.00 kJ/mol   
99+
3rd Energy Level
2,850.00 kJ/mol   
33
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
0.52 g/amp-hr   
99+
1.73 g/amp-hr   
99+
Electron Work Function
Not Available   
3.50 eV   
31
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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