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Chemical Properties of Cobalt and Iron

Cobalt
Iron
Chemical Properties of Iron and Cobalt


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