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Chemical Properties of Hafnium and Chromium

Hafnium
Chromium
Chemical Properties of Chromium and Hafnium


Chemical Properties
Chemical Formula
Hf   
Cr   
Isotopes
  
  
Known Isotopes
32   
7
21   
18
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
1.66   
18
Sanderson Electronegativity
Not Available   
1.66   
14
Allred Rochow Electronegativity
1.23   
25
1.56   
10
Allen Electronegativity
1.16   
37
1.65   
19
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.34   
36
Ionization Energies
  
  
1st Energy Level
658.50 kJ/mol   
40
26,130.00 kJ/mol   
1
2nd Energy Level
1,440.00 kJ/mol   
99+
28,750.00 kJ/mol   
1
3rd Energy Level
2,250.00 kJ/mol   
99+
34,230.00 kJ/mol   
1
4th Energy Level
3,216.00 kJ/mol   
99+
37,066.00 kJ/mol   
1
5th Energy Level
Not Available   
97,510.00 kJ/mol   
1
6th Energy Level
Not Available   
105,800.00 kJ/mol   
1
7th Energy level
Not Available   
114,300.00 kJ/mol   
1
8th Energy Level
Not Available   
125,300.00 kJ/mol   
1
9th Energy Level
Not Available   
134,700.00 kJ/mol   
1
10th Energy Level
Not Available   
144,300.00 kJ/mol   
1
11th Energy Level
Not Available   
26,130.00 kJ/mol   
12
12th Energy Level
Not Available   
28,750.00 kJ/mol   
13
13th Energy Level
Not Available   
34,230.00 kJ/mol   
10
14th Energy Level
Not Available   
37,066.00 kJ/mol   
12
15th Energy Level
Not Available   
97,510.00 kJ/mol   
1
16th Energy Level
Not Available   
105,800.00 kJ/mol   
2
17th Energy Level
Not Available   
114,300.00 kJ/mol   
3
18th Energy Level
Not Available   
125,300.00 kJ/mol   
4
19th Energy Level
Not Available   
134,700.00 kJ/mol   
5
20th Energy Level
Not Available   
144,300.00 kJ/mol   
7
21st Energy Level
Not Available   
157,700.00 kJ/mol   
7
22nd Energy Level
Not Available   
166,090.00 kJ/mol   
6
Electrochemical Equivalent
1.66 g/amp-hr   
99+
0.32 g/amp-hr   
99+
Electron Work Function
3.90 eV   
27
4.50 eV   
14
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes, Solubility   
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