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Chemical Properties of Iron and Cobalt

Iron
Cobalt
Chemical Properties of Cobalt and Iron


Chemical Properties
Chemical Formula
Fe   
Co   
Isotopes
  
  
Known Isotopes
26   
13
26   
13
Electronegativity
  
  
Pauling Electronegativity
1.83   
14
1.88   
12
Sanderson Electronegativity
2.20   
7
2.56   
1
Allred Rochow Electronegativity
1.64   
8
1.70   
5
Allen Electronegativity
1.80   
12
1.84   
10
Electropositivity
  
  
Pauling Electropositivity
2.17   
40
2.12   
99+
Ionization Energies
  
  
1st Energy Level
762.50 kJ/mol   
17
760.40 kJ/mol   
19
2nd Energy Level
1,561.90 kJ/mol   
36
1,648.00 kJ/mol   
31
3rd Energy Level
2,957.00 kJ/mol   
29
3,232.00 kJ/mol   
22
4th Energy Level
5,290.00 kJ/mol   
16
4,950.00 kJ/mol   
19
5th Energy Level
7,240.00 kJ/mol   
16
7,670.00 kJ/mol   
12
6th Energy Level
9,560.00 kJ/mol   
14
9,840.00 kJ/mol   
12
7th Energy level
12,060.00 kJ/mol   
15
12,440.00 kJ/mol   
11
8th Energy Level
14,580.00 kJ/mol   
14
15,230.00 kJ/mol   
12
9th Energy Level
22,540.00 kJ/mol   
5
17,959.00 kJ/mol   
13
10th Energy Level
25,290.00 kJ/mol   
8
26,570.00 kJ/mol   
7
11th Energy Level
28,000.00 kJ/mol   
9
29,400.00 kJ/mol   
8
12th Energy Level
31,920.00 kJ/mol   
9
32,400.00 kJ/mol   
8
13th Energy Level
34,830.00 kJ/mol   
9
36,600.00 kJ/mol   
8
14th Energy Level
37,840.00 kJ/mol   
11
39,700.00 kJ/mol   
9
15th Energy Level
44,100.00 kJ/mol   
11
42,800.00 kJ/mol   
12
16th Energy Level
47,206.00 kJ/mol   
13
49,396.00 kJ/mol   
11
17th Energy Level
122,200.00 kJ/mol   
1
52,737.00 kJ/mol   
13
18th Energy Level
131,000.00 kJ/mol   
2
134,810.00 kJ/mol   
1
19th Energy Level
140,500.00 kJ/mol   
3
145,170.00 kJ/mol   
2
20th Energy Level
152,600.00 kJ/mol   
5
154,700.00 kJ/mol   
4
21st Energy Level
163,000.00 kJ/mol   
5
167,400.00 kJ/mol   
4
22nd Energy Level
173,600.00 kJ/mol   
4
178,100.00 kJ/mol   
3
23rd Energy Level
188,100.00 kJ/mol   
4
189,300.00 kJ/mol   
3
24th Energy Level
195,200.00 kJ/mol   
1
Not Available   
Electrochemical Equivalent
0.69 g/amp-hr   
99+
1.10 g/amp-hr   
99+
Electron Work Function
4.70 eV   
10
5.00 eV   
5
Other Chemical Properties
Corrosion, Ionization, Solubility   
Chemical Stability, Ionization   
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