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Chemical Properties of Hafnium and Roentgenium

Hafnium
Roentgenium
Chemical Properties of Roentgenium and Hafnium


Chemical Properties
Chemical Formula
Hf   
Rg   
Isotopes
  
  
Known Isotopes
32   
7
1   
34
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
Not Available   
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
1,022.70 kJ/mol   
3
2nd Energy Level
1,440.00 kJ/mol   
99+
2,074.40 kJ/mol   
10
3rd Energy Level
2,250.00 kJ/mol   
99+
3,077.90 kJ/mol   
24
4th Energy Level
3,216.00 kJ/mol   
99+
4,052.40 kJ/mol   
36
5th Energy Level
Not Available   
5,306.70 kJ/mol   
31
Electrochemical Equivalent
1.66 g/amp-hr   
99+
Not Available   
Electron Work Function
3.90 eV   
27
Not Available   
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
NA   
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