Chemical Properties of Potassium and Scandium
Chemical Properties
Chemical Formula
K
Sc
Isotopes
Known Isotopes
20
19
13
26
Electronegativity
Pauling Electronegativity
0.82
99+
1.36
29
Sanderson Electronegativity
0.45
31
1.02
21
Allred Rochow Electronegativity
0.91
39
1.20
27
Mulliken-Jaffe Electronegativity
0.73
23
Not Available
Allen Electronegativity
0.73
99+
1.19
36
Electropositivity
Pauling Electropositivity
3.18
3
2.64
25
Ionization Energies
1st Energy Level
418.80 kJ/mol
99+
633.10 kJ/mol
99+
2nd Energy Level
3,052.00 kJ/mol
5
1,235.00 kJ/mol
99+
3rd Energy Level
4,420.00 kJ/mol
8
2,388.60 kJ/mol
99+
4th Energy Level
5,877.00 kJ/mol
9
7,090.60 kJ/mol
6
5th Energy Level
7,975.00 kJ/mol
8
8,843.00 kJ/mol
6
6th Energy Level
9,590.00 kJ/mol
13
10,679.00 kJ/mol
7
7th Energy level
11,343.00 kJ/mol
17
13,310.00 kJ/mol
8
8th Energy Level
14,944.00 kJ/mol
13
15,250.00 kJ/mol
11
9th Energy Level
16,963.70 kJ/mol
15
17,370.00 kJ/mol
14
10th Energy Level
48,610.00 kJ/mol
3
21,726.00 kJ/mol
13
11th Energy Level
54,490.00 kJ/mol
4
24,102.00 kJ/mol
16
12th Energy Level
60,730.00 kJ/mol
4
66,320.00 kJ/mol
2
13th Energy Level
68,950.00 kJ/mol
4
73,010.00 kJ/mol
2
14th Energy Level
75,900.00 kJ/mol
5
80,160.00 kJ/mol
3
15th Energy Level
83,080.00 kJ/mol
6
89,490.00 kJ/mol
4
16th Energy Level
93,400.00 kJ/mol
7
97,400.00 kJ/mol
5
17th Energy Level
99,710.00 kJ/mol
8
105,600.00 kJ/mol
6
18th Energy Level
Not Available
117,000.00 kJ/mol
7
19th Energy Level
Not Available
124,270.00 kJ/mol
8
Electrochemical Equivalent
1.46 g/amp-hr
99+
0.56 g/amp-hr
99+
Electron Work Function
2.30 eV
99+
3.50 eV
31
Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility
Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility
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