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Chemical Properties of Rubidium and Potassium

Rubidium
Potassium
Chemical Properties of Potassium and Rubidium


Chemical Properties
Chemical Formula
Rb   
K   
Isotopes
  
  
Known Isotopes
29   
10
20   
19
Electronegativity
  
  
Pauling Electronegativity
0.82   
99+
0.82   
99+
Sanderson Electronegativity
0.31   
32
0.45   
31
Allred Rochow Electronegativity
0.89   
40
0.91   
39
Mulliken-Jaffe Electronegativity
0.69   
24
0.73   
23
Allen Electronegativity
0.71   
99+
0.73   
99+
Electropositivity
  
  
Pauling Electropositivity
3.18   
3
3.18   
3
Ionization Energies
  
  
1st Energy Level
403.00 kJ/mol   
99+
418.80 kJ/mol   
99+
2nd Energy Level
2,633.00 kJ/mol   
6
3,052.00 kJ/mol   
5
3rd Energy Level
3,860.00 kJ/mol   
11
4,420.00 kJ/mol   
8
4th Energy Level
5,080.00 kJ/mol   
18
5,877.00 kJ/mol   
9
5th Energy Level
6,850.00 kJ/mol   
19
7,975.00 kJ/mol   
8
6th Energy Level
8,140.00 kJ/mol   
20
9,590.00 kJ/mol   
13
7th Energy level
9,570.00 kJ/mol   
20
11,343.00 kJ/mol   
17
8th Energy Level
13,120.00 kJ/mol   
17
14,944.00 kJ/mol   
13
9th Energy Level
14,500.00 kJ/mol   
18
16,963.70 kJ/mol   
15
10th Energy Level
26,740.00 kJ/mol   
6
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
3.19 g/amp-hr   
14
1.46 g/amp-hr   
99+
Electron Work Function
2.16 eV   
99+
2.30 eV   
99+
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Flammability, Ionization, Solubility   
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