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Chemical Properties of Cerium and Tantalum

Cerium
Tantalum
Chemical Properties of Tantalum and Cerium


Chemical Properties
Chemical Formula
Ce   
Ta   
Isotopes
  
  
Known Isotopes
30   
9
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.12   
99+
1.50   
27
Allred Rochow Electronegativity
1.08   
31
1.33   
22
Allen Electronegativity
Not Available   
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
2.88   
11
2.50   
27
Ionization Energies
  
  
1st Energy Level
534.40 kJ/mol   
99+
761.00 kJ/mol   
18
2nd Energy Level
1,050.00 kJ/mol   
99+
1,500.00 kJ/mol   
40
3rd Energy Level
1,949.00 kJ/mol   
99+
Not Available   
4th Energy Level
3,547.00 kJ/mol   
99+
Not Available   
5th Energy Level
6,325.00 kJ/mol   
22
Not Available   
6th Energy Level
7,490.00 kJ/mol   
21
Not Available   
Electrochemical Equivalent
1.74 g/amp-hr   
99+
1.35 g/amp-hr   
99+
Electron Work Function
2.84 eV   
39
4.25 eV   
21
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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