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Chemical Properties of Cobalt and Beryllium

Cobalt
Beryllium
Chemical Properties of Beryllium and Cobalt


Chemical Properties
Chemical Formula
Co   
Be   
Isotopes
  
  
Known Isotopes
26   
13
9   
29
Electronegativity
  
  
Pauling Electronegativity
1.88   
12
1.57   
24
Sanderson Electronegativity
2.56   
1
1.81   
12
Allred Rochow Electronegativity
1.70   
5
1.47   
14
Mulliken-Jaffe Electronegativity
Not Available   
1.54   
12
Allen Electronegativity
1.84   
10
1.58   
23
Electropositivity
  
  
Pauling Electropositivity
2.12   
99+
2.43   
30
Ionization Energies
  
  
1st Energy Level
760.40 kJ/mol   
19
899.50 kJ/mol   
7
2nd Energy Level
1,648.00 kJ/mol   
31
1,757.10 kJ/mol   
23
3rd Energy Level
3,232.00 kJ/mol   
22
14,848.70 kJ/mol   
2
4th Energy Level
4,950.00 kJ/mol   
19
21,006.60 kJ/mol   
2
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+
0.17 g/amp-hr   
99+
Electron Work Function
5.00 eV   
5
4.98 eV   
6
Other Chemical Properties
Chemical Stability, Ionization   
Corrosion, Ionization, Radioactive Isotopes   
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