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Chemical Properties of Lead and Niobium

Lead
Niobium
Chemical Properties of Niobium and Lead


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