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Chemical Properties of Erbium and Copper


Chemical Properties of Copper and Erbium


Chemical Properties

Chemical Formula
Er   
Cu   

Isotopes
  
  

Known Isotopes
31   
8
29   
10

Electronegativity
  
  

Pauling Electronegativity
1.24   
36
1.90   
11

Sanderson Electronegativity
Not Available   
1.98   
9

Allred Rochow Electronegativity
1.11   
29
1.75   
3

Mulliken-Jaffe Electronegativity
Not Available   
1.49   
14

Allen Electronegativity
Not Available   
1.85   
9

Electropositivity
  
  

Pauling Electropositivity
2.76   
18
2.10   
99+

Ionization Energies
  
  

1st Energy Level
589.30 kJ/mol   
99+
745.50 kJ/mol   
22

2nd Energy Level
1,150.00 kJ/mol   
99+
1,957.90 kJ/mol   
15

3rd Energy Level
2,194.00 kJ/mol   
99+
3,555.00 kJ/mol   
15

4th Energy Level
4,120.00 kJ/mol   
33
5,536.00 kJ/mol   
12

5th Energy Level
Not Available   
7,700.00 kJ/mol   
11

6th Energy Level
Not Available   
9,900.00 kJ/mol   
10

7th Energy level
Not Available   
13,400.00 kJ/mol   
7

8th Energy Level
Not Available   
16,000.00 kJ/mol   
9

9th Energy Level
Not Available   
19,200.00 kJ/mol   
9

10th Energy Level
Not Available   
22,400.00 kJ/mol   
11

11th Energy Level
Not Available   
25,600.00 kJ/mol   
13

12th Energy Level
Not Available   
35,600.00 kJ/mol   
6

13th Energy Level
Not Available   
38,700.00 kJ/mol   
6

14th Energy Level
Not Available   
42,000.00 kJ/mol   
7

15th Energy Level
Not Available   
46,700.00 kJ/mol   
9

16th Energy Level
Not Available   
50,200.00 kJ/mol   
10

17th Energy Level
Not Available   
53,700.00 kJ/mol   
12

18th Energy Level
Not Available   
61,100.00 kJ/mol   
10

19th Energy Level
Not Available   
64,702.00 kJ/mol   
11

20th Energy Level
Not Available   
163,700.00 kJ/mol   
2

21st Energy Level
Not Available   
174,100.00 kJ/mol   
2

22nd Energy Level
Not Available   
184,900.00 kJ/mol   
1

23rd Energy Level
Not Available   
198,800.00 kJ/mol   
1

Electrochemical Equivalent
2.08 g/amp-hr   
28
1.19 g/amp-hr   
99+

Electron Work Function
Not Available   
4.65 eV   
11

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Corrosion, Ionization, Solubility   

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