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Chemical Properties of Erbium and Potassium

Erbium
Potassium
Chemical Properties of Potassium and Erbium


Chemical Properties
Chemical Formula
Er   
K   
Isotopes
  
  
Known Isotopes
31   
8
20   
19
Electronegativity
  
  
Pauling Electronegativity
1.24   
36
0.82   
99+
Sanderson Electronegativity
Not Available   
0.45   
31
Allred Rochow Electronegativity
1.11   
29
0.91   
39
Mulliken-Jaffe Electronegativity
Not Available   
0.73   
23
Allen Electronegativity
Not Available   
0.73   
99+
Electropositivity
  
  
Pauling Electropositivity
2.76   
18
3.18   
3
Ionization Energies
  
  
1st Energy Level
589.30 kJ/mol   
99+
418.80 kJ/mol   
99+
2nd Energy Level
1,150.00 kJ/mol   
99+
3,052.00 kJ/mol   
5
3rd Energy Level
2,194.00 kJ/mol   
99+
4,420.00 kJ/mol   
8
4th Energy Level
4,120.00 kJ/mol   
33
5,877.00 kJ/mol   
9
5th Energy Level
Not Available   
7,975.00 kJ/mol   
8
6th Energy Level
Not Available   
9,590.00 kJ/mol   
13
7th Energy level
Not Available   
11,343.00 kJ/mol   
17
8th Energy Level
Not Available   
14,944.00 kJ/mol   
13
9th Energy Level
Not Available   
16,963.70 kJ/mol   
15
10th Energy Level
Not Available   
48,610.00 kJ/mol   
3
11th Energy Level
Not Available   
54,490.00 kJ/mol   
4
12th Energy Level
Not Available   
60,730.00 kJ/mol   
4
13th Energy Level
Not Available   
68,950.00 kJ/mol   
4
14th Energy Level
Not Available   
75,900.00 kJ/mol   
5
15th Energy Level
Not Available   
83,080.00 kJ/mol   
6
16th Energy Level
Not Available   
93,400.00 kJ/mol   
7
17th Energy Level
Not Available   
99,710.00 kJ/mol   
8
Electrochemical Equivalent
2.08 g/amp-hr   
28
1.46 g/amp-hr   
99+
Electron Work Function
Not Available   
2.30 eV   
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Flammability, Ionization, Solubility   
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