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Chemical Properties of Niobium and Potassium

Niobium
Potassium
Chemical Properties of Potassium and Niobium


Chemical Properties
Chemical Formula
Nb   
K   
Isotopes
  
  
Known Isotopes
17   
22
20   
19
Electronegativity
  
  
Pauling Electronegativity
1.60   
23
0.82   
99+
Sanderson Electronegativity
1.42   
16
0.45   
31
Allred Rochow Electronegativity
1.23   
25
0.91   
39
Mulliken-Jaffe Electronegativity
Not Available   
0.73   
23
Allen Electronegativity
1.41   
31
0.73   
99+
Electropositivity
  
  
Pauling Electropositivity
2.40   
31
3.18   
3
Ionization Energies
  
  
1st Energy Level
652.10 kJ/mol   
99+
418.80 kJ/mol   
99+
2nd Energy Level
1,380.00 kJ/mol   
99+
3,052.00 kJ/mol   
5
3rd Energy Level
2,416.00 kJ/mol   
99+
4,420.00 kJ/mol   
8
4th Energy Level
3,700.00 kJ/mol   
99+
5,877.00 kJ/mol   
9
5th Energy Level
4,877.00 kJ/mol   
36
7,975.00 kJ/mol   
8
6th Energy Level
9,847.00 kJ/mol   
11
9,590.00 kJ/mol   
13
7th Energy level
12,100.00 kJ/mol   
14
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
0.69 g/amp-hr   
99+
1.46 g/amp-hr   
99+
Electron Work Function
4.30 eV   
18
2.30 eV   
99+
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Flammability, Ionization, Solubility   
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