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Chemical Properties of Scandium and Hafnium

Scandium
Hafnium
Chemical Properties of Hafnium and Scandium


Chemical Properties
Chemical Formula
Sc   
Hf   
Isotopes
  
  
Known Isotopes
13   
26
32   
7
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
1.30   
32
Sanderson Electronegativity
1.02   
21
Not Available   
Allred Rochow Electronegativity
1.20   
27
1.23   
25
Allen Electronegativity
1.19   
36
1.16   
37
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
2.70   
22
Ionization Energies
  
  
1st Energy Level
633.10 kJ/mol   
99+
658.50 kJ/mol   
40
2nd Energy Level
1,235.00 kJ/mol   
99+
1,440.00 kJ/mol   
99+
3rd Energy Level
2,388.60 kJ/mol   
99+
2,250.00 kJ/mol   
99+
4th Energy Level
7,090.60 kJ/mol   
6
3,216.00 kJ/mol   
99+
5th Energy Level
8,843.00 kJ/mol   
6
Not Available   
6th Energy Level
10,679.00 kJ/mol   
7
Not Available   
7th Energy level
13,310.00 kJ/mol   
8
Not Available   
8th Energy Level
15,250.00 kJ/mol   
11
Not Available   
9th Energy Level
17,370.00 kJ/mol   
14
Not Available   
10th Energy Level
21,726.00 kJ/mol   
13
Not Available   
11th Energy Level
24,102.00 kJ/mol   
16
Not Available   
12th Energy Level
66,320.00 kJ/mol   
2
Not Available   
13th Energy Level
73,010.00 kJ/mol   
2
Not Available   
14th Energy Level
80,160.00 kJ/mol   
3
Not Available   
15th Energy Level
89,490.00 kJ/mol   
4
Not Available   
16th Energy Level
97,400.00 kJ/mol   
5
Not Available   
17th Energy Level
105,600.00 kJ/mol   
6
Not Available   
18th Energy Level
117,000.00 kJ/mol   
7
Not Available   
19th Energy Level
124,270.00 kJ/mol   
8
Not Available   
Electrochemical Equivalent
0.56 g/amp-hr   
99+
1.66 g/amp-hr   
99+
Electron Work Function
3.50 eV   
31
3.90 eV   
27
Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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