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Chemical Properties of Niobium and Lead

Niobium
Lead
Chemical Properties of Lead and Niobium


Chemical Properties
Chemical Formula
Nb   
Pb   
Isotopes
  
  
Known Isotopes
17   
22
35   
4
Electronegativity
  
  
Pauling Electronegativity
1.60   
23
1.87   
13
Sanderson Electronegativity
1.42   
16
2.29   
4
Allred Rochow Electronegativity
1.23   
25
1.55   
11
Mulliken-Jaffe Electronegativity
Not Available   
2.41   
2
Allen Electronegativity
1.41   
31
1.85   
8
Electropositivity
  
  
Pauling Electropositivity
2.40   
31
1.67   
99+
Ionization Energies
  
  
1st Energy Level
652.10 kJ/mol   
99+
715.60 kJ/mol   
31
2nd Energy Level
1,380.00 kJ/mol   
99+
1,450.50 kJ/mol   
99+
3rd Energy Level
2,416.00 kJ/mol   
99+
3,081.50 kJ/mol   
23
4th Energy Level
3,700.00 kJ/mol   
99+
4,083.00 kJ/mol   
35
5th Energy Level
4,877.00 kJ/mol   
36
6,640.00 kJ/mol   
20
6th Energy Level
9,847.00 kJ/mol   
11
Not Available   
7th Energy level
12,100.00 kJ/mol   
14
Not Available   
Electrochemical Equivalent
0.69 g/amp-hr   
99+
3.87 g/amp-hr   
9
Electron Work Function
4.30 eV   
18
4.25 eV   
21
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes   
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