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Chemical Properties of Cobalt and Rhodium

Cobalt
Rhodium
Chemical Properties of Rhodium and Cobalt


Chemical Properties
Chemical Formula
Co   
Rh   
Isotopes
  
  
Known Isotopes
26   
13
16   
23
Electronegativity
  
  
Pauling Electronegativity
1.88   
12
2.28   
3
Sanderson Electronegativity
2.56   
1
Not Available   
Allred Rochow Electronegativity
1.70   
5
1.45   
16
Allen Electronegativity
1.84   
10
1.56   
24
Electropositivity
  
  
Pauling Electropositivity
2.12   
99+
1.72   
99+
Ionization Energies
  
  
1st Energy Level
760.40 kJ/mol   
19
719.70 kJ/mol   
29
2nd Energy Level
1,648.00 kJ/mol   
31
1,740.00 kJ/mol   
26
3rd Energy Level
3,232.00 kJ/mol   
22
2,997.00 kJ/mol   
27
4th Energy Level
4,950.00 kJ/mol   
19
Not Available   
5th Energy Level
7,670.00 kJ/mol   
12
Not Available   
6th Energy Level
9,840.00 kJ/mol   
12
Not Available   
7th Energy level
12,440.00 kJ/mol   
11
Not Available   
8th Energy Level
15,230.00 kJ/mol   
12
Not Available   
9th Energy Level
17,959.00 kJ/mol   
13
Not Available   
10th Energy Level
26,570.00 kJ/mol   
7
Not Available   
11th Energy Level
29,400.00 kJ/mol   
8
Not Available   
12th Energy Level
32,400.00 kJ/mol   
8
Not Available   
13th Energy Level
36,600.00 kJ/mol   
8
Not Available   
14th Energy Level
39,700.00 kJ/mol   
9
Not Available   
15th Energy Level
42,800.00 kJ/mol   
12
Not Available   
16th Energy Level
49,396.00 kJ/mol   
11
Not Available   
17th Energy Level
52,737.00 kJ/mol   
13
Not Available   
18th Energy Level
134,810.00 kJ/mol   
1
Not Available   
19th Energy Level
145,170.00 kJ/mol   
2
Not Available   
20th Energy Level
154,700.00 kJ/mol   
4
Not Available   
21st Energy Level
167,400.00 kJ/mol   
4
Not Available   
22nd Energy Level
178,100.00 kJ/mol   
3
Not Available   
23rd Energy Level
189,300.00 kJ/mol   
3
Not Available   
Electrochemical Equivalent
1.10 g/amp-hr   
99+
1.28 g/amp-hr   
99+
Electron Work Function
5.00 eV   
5
4.98 eV   
6
Other Chemical Properties
Chemical Stability, Ionization   
Anti Corrosion, Ionization, Radioactive Isotopes   
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