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Chemical Properties of Ruthenium and Hafnium

Ruthenium
Hafnium
Chemical Properties of Hafnium and Ruthenium


Chemical Properties
Chemical Formula
Ru   
Hf   
Isotopes
  
  
Known Isotopes
26   
13
32   
7
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.30   
32
Allred Rochow Electronegativity
1.42   
18
1.23   
25
Allen Electronegativity
1.54   
25
1.16   
37
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.70   
22
Ionization Energies
  
  
1st Energy Level
710.20 kJ/mol   
32
658.50 kJ/mol   
40
2nd Energy Level
710.22 kJ/mol   
99+
1,440.00 kJ/mol   
99+
3rd Energy Level
2,747.00 kJ/mol   
37
2,250.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,216.00 kJ/mol   
99+
Electrochemical Equivalent
1.26 g/amp-hr   
99+
1.66 g/amp-hr   
99+
Electron Work Function
4.71 eV   
9
3.90 eV   
27
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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