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Chemical Properties of Potassium and Sodium

Potassium
Sodium
Chemical Properties of Sodium and Potassium


Chemical Properties
Chemical Formula
K   
Na   
Isotopes
  
  
Known Isotopes
20   
19
17   
22
Electronegativity
  
  
Pauling Electronegativity
0.82   
99+
0.93   
99+
Sanderson Electronegativity
0.45   
31
0.56   
30
Allred Rochow Electronegativity
0.91   
39
1.01   
35
Mulliken-Jaffe Electronegativity
0.73   
23
0.91   
21
Allen Electronegativity
0.73   
99+
0.87   
99+
Electropositivity
  
  
Pauling Electropositivity
3.18   
3
3.07   
6
Ionization Energies
  
  
1st Energy Level
418.80 kJ/mol   
99+
495.80 kJ/mol   
99+
2nd Energy Level
3,052.00 kJ/mol   
5
4,562.00 kJ/mol   
4
3rd Energy Level
4,420.00 kJ/mol   
8
6,910.30 kJ/mol   
6
4th Energy Level
5,877.00 kJ/mol   
9
9,543.00 kJ/mol   
5
5th Energy Level
7,975.00 kJ/mol   
8
13,354.00 kJ/mol   
4
6th Energy Level
9,590.00 kJ/mol   
13
16,613.00 kJ/mol   
4
7th Energy level
11,343.00 kJ/mol   
17
20,117.00 kJ/mol   
4
8th Energy Level
14,944.00 kJ/mol   
13
25,496.00 kJ/mol   
4
9th Energy Level
16,963.70 kJ/mol   
15
28,932.00 kJ/mol   
4
10th Energy Level
48,610.00 kJ/mol   
3
141,362.00 kJ/mol   
2
11th Energy Level
54,490.00 kJ/mol   
4
159,076.00 kJ/mol   
2
12th Energy Level
60,730.00 kJ/mol   
4
Not Available   
13th Energy Level
68,950.00 kJ/mol   
4
Not Available   
14th Energy Level
75,900.00 kJ/mol   
5
Not Available   
15th Energy Level
83,080.00 kJ/mol   
6
Not Available   
16th Energy Level
93,400.00 kJ/mol   
7
Not Available   
17th Energy Level
99,710.00 kJ/mol   
8
Not Available   
Electrochemical Equivalent
1.46 g/amp-hr   
99+
0.86 g/amp-hr   
99+
Electron Work Function
2.30 eV   
99+
2.75 eV   
40
Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility   
Chemical Stability, Corrosion, Flammability, Ionization, Solubility   
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