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Chemical Properties of Potassium and Calcium

Potassium
Calcium
Chemical Properties of Calcium and Potassium


Chemical Properties
Chemical Formula
K   
Ca   
Isotopes
  
  
Known Isotopes
20   
19
19   
20
Electronegativity
  
  
Pauling Electronegativity
0.82   
99+
1.00   
99+
Sanderson Electronegativity
0.45   
31
0.95   
24
Allred Rochow Electronegativity
0.91   
39
1.04   
34
Mulliken-Jaffe Electronegativity
0.73   
23
1.08   
17
Allen Electronegativity
0.73   
99+
1.03   
39
Electropositivity
  
  
Pauling Electropositivity
3.18   
3
3.00   
9
Ionization Energies
  
  
1st Energy Level
418.80 kJ/mol   
99+
589.80 kJ/mol   
99+
2nd Energy Level
3,052.00 kJ/mol   
5
1,145.40 kJ/mol   
99+
3rd Energy Level
4,420.00 kJ/mol   
8
4,912.40 kJ/mol   
7
4th Energy Level
5,877.00 kJ/mol   
9
6,491.00 kJ/mol   
7
5th Energy Level
7,975.00 kJ/mol   
8
8,153.00 kJ/mol   
7
6th Energy Level
9,590.00 kJ/mol   
13
10,496.00 kJ/mol   
8
7th Energy level
11,343.00 kJ/mol   
17
12,270.00 kJ/mol   
12
8th Energy Level
14,944.00 kJ/mol   
13
14,206.00 kJ/mol   
15
9th Energy Level
16,963.70 kJ/mol   
15
18,191.00 kJ/mol   
12
10th Energy Level
48,610.00 kJ/mol   
3
20,385.00 kJ/mol   
16
11th Energy Level
54,490.00 kJ/mol   
4
57,110.00 kJ/mol   
3
12th Energy Level
60,730.00 kJ/mol   
4
63,410.00 kJ/mol   
3
13th Energy Level
68,950.00 kJ/mol   
4
70,110.00 kJ/mol   
3
14th Energy Level
75,900.00 kJ/mol   
5
78,890.00 kJ/mol   
4
15th Energy Level
83,080.00 kJ/mol   
6
86,310.00 kJ/mol   
5
16th Energy Level
93,400.00 kJ/mol   
7
94,000.00 kJ/mol   
6
17th Energy Level
99,710.00 kJ/mol   
8
104,900.00 kJ/mol   
7
18th Energy Level
Not Available   
111,711.00 kJ/mol   
8
Electrochemical Equivalent
1.46 g/amp-hr   
99+
0.75 g/amp-hr   
99+
Electron Work Function
2.30 eV   
99+
2.87 eV   
38
Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility   
Chemical Stability, Flammability, Ionization, Solubility   
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