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Chemical Properties of Hafnium and Radium

Hafnium
Radium
Chemical Properties of Radium and Hafnium


Chemical Properties
Chemical Formula
Hf   
Ra   
Isotopes
  
  
Known Isotopes
32   
7
33   
6
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
0.90   
99+
Allred Rochow Electronegativity
1.23   
25
0.97   
38
Mulliken-Jaffe Electronegativity
Not Available   
0.92   
20
Allen Electronegativity
1.16   
37
0.89   
99+
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
3.10   
5
Ionization Energies
  
  
1st Energy Level
658.50 kJ/mol   
40
509.30 kJ/mol   
99+
2nd Energy Level
1,440.00 kJ/mol   
99+
979.00 kJ/mol   
99+
3rd Energy Level
2,250.00 kJ/mol   
99+
Not Available   
4th Energy Level
3,216.00 kJ/mol   
99+
Not Available   
Electrochemical Equivalent
1.66 g/amp-hr   
99+
4.22 g/amp-hr   
6
Electron Work Function
3.90 eV   
27
Not Available   
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic >>
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