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Chemical Properties of Hafnium and Europium

Hafnium
Europium
Chemical Properties of Europium and Hafnium


Chemical Properties
Chemical Formula
Hf   
Eu   
Isotopes
  
  
Known Isotopes
32   
7
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
1.20   
39
Sanderson Electronegativity
Not Available   
1.01   
22
Allred Rochow Electronegativity
1.23   
25
Not Available   
Allen Electronegativity
1.16   
37
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
Not Available   
Ionization Energies
  
  
1st Energy Level
658.50 kJ/mol   
40
547.10 kJ/mol   
99+
2nd Energy Level
1,440.00 kJ/mol   
99+
1,085.00 kJ/mol   
99+
3rd Energy Level
2,250.00 kJ/mol   
99+
2,404.00 kJ/mol   
99+
4th Energy Level
3,216.00 kJ/mol   
99+
4,120.00 kJ/mol   
33
Electrochemical Equivalent
1.66 g/amp-hr   
99+
1.89 g/amp-hr   
33
Electron Work Function
3.90 eV   
27
2.50 eV   
99+
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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