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Chemical Properties of Cerium and Hafnium

Cerium
Hafnium
Chemical Properties of Hafnium and Cerium


Chemical Properties
Chemical Formula
Ce   
Hf   
Isotopes
  
  
Known Isotopes
30   
9
32   
7
Electronegativity
  
  
Pauling Electronegativity
1.12   
99+
1.30   
32
Allred Rochow Electronegativity
1.08   
31
1.23   
25
Allen Electronegativity
Not Available   
1.16   
37
Electropositivity
  
  
Pauling Electropositivity
2.88   
11
2.70   
22
Ionization Energies
  
  
1st Energy Level
534.40 kJ/mol   
99+
658.50 kJ/mol   
40
2nd Energy Level
1,050.00 kJ/mol   
99+
1,440.00 kJ/mol   
99+
3rd Energy Level
1,949.00 kJ/mol   
99+
2,250.00 kJ/mol   
99+
4th Energy Level
3,547.00 kJ/mol   
99+
3,216.00 kJ/mol   
99+
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+
1.66 g/amp-hr   
99+
Electron Work Function
2.84 eV   
39
3.90 eV   
27
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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