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Chemical Properties of Hafnium and Americium

Hafnium
Americium
Chemical Properties of Americium and Hafnium


Chemical Properties
Chemical Formula
Hf   
Am   
Isotopes
  
  
Known Isotopes
32   
7
16   
23
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
1.30   
32
Allred Rochow Electronegativity
1.23   
25
1.20   
27
Allen Electronegativity
1.16   
37
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.70   
22
Ionization Energies
  
  
1st Energy Level
658.50 kJ/mol   
40
578.00 kJ/mol   
99+
2nd Energy Level
1,440.00 kJ/mol   
99+
1,158.00 kJ/mol   
99+
3rd Energy Level
2,250.00 kJ/mol   
99+
2,132.00 kJ/mol   
99+
4th Energy Level
3,216.00 kJ/mol   
99+
3,493.00 kJ/mol   
99+
Electrochemical Equivalent
1.66 g/amp-hr   
99+
3.02 g/amp-hr   
17
Electron Work Function
3.90 eV   
27
Not Available   
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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