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Chemical Properties of Hafnium and Berkelium

Hafnium
Berkelium
Chemical Properties of Berkelium and Hafnium


Chemical Properties
Chemical Formula
Hf   
Bk   
Isotopes
  
  
Known Isotopes
32   
7
14   
25
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
1.30   
32
Allred Rochow Electronegativity
1.23   
25
1.20   
27
Allen Electronegativity
1.16   
37
2.70   
1
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.70   
22
Ionization Energies
  
  
1st Energy Level
658.50 kJ/mol   
40
601.00 kJ/mol   
99+
2nd Energy Level
1,440.00 kJ/mol   
99+
1,186.00 kJ/mol   
99+
3rd Energy Level
2,250.00 kJ/mol   
99+
2,152.00 kJ/mol   
99+
4th Energy Level
3,216.00 kJ/mol   
99+
3,434.00 kJ/mol   
99+
Electrochemical Equivalent
1.66 g/amp-hr   
99+
3.07 g/amp-hr   
16
Electron Work Function
3.90 eV   
27
Not Available   
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
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