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Chemical Properties of Hafnium and Aluminium

Hafnium
Aluminium
Chemical Properties of Aluminium and Hafnium


Chemical Properties
Chemical Formula
Hf   
Al   
Isotopes
  
  
Known Isotopes
32   
7
11   
27
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
1.61   
22
Sanderson Electronegativity
Not Available   
1.71   
13
Allred Rochow Electronegativity
1.23   
25
1.47   
14
Mulliken-Jaffe Electronegativity
Not Available   
1.83   
8
Allen Electronegativity
1.16   
37
1.61   
20
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.39   
32
Ionization Energies
  
  
1st Energy Level
658.50 kJ/mol   
40
577.50 kJ/mol   
99+
2nd Energy Level
1,440.00 kJ/mol   
99+
1,816.70 kJ/mol   
19
3rd Energy Level
2,250.00 kJ/mol   
99+
2,744.80 kJ/mol   
38
4th Energy Level
3,216.00 kJ/mol   
99+
11,577.00 kJ/mol   
3
5th Energy Level
Not Available   
14,842.00 kJ/mol   
2
6th Energy Level
Not Available   
18,379.00 kJ/mol   
2
7th Energy level
Not Available   
23,326.00 kJ/mol   
2
8th Energy Level
Not Available   
27,465.00 kJ/mol   
2
9th Energy Level
Not Available   
31,853.00 kJ/mol   
2
10th Energy Level
Not Available   
38,473.00 kJ/mol   
4
11th Energy Level
Not Available   
42,647.00 kJ/mol   
5
Electrochemical Equivalent
1.66 g/amp-hr   
99+
0.34 g/amp-hr   
99+
Electron Work Function
3.90 eV   
27
4.28 eV   
19
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Ionization, Radioactive Isotopes   
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