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Chemical Properties of Technetium and Niobium


Chemical Properties of Niobium and Technetium


Chemical Properties

Chemical Formula
Tc   
Nb   

Isotopes
  
  

Known Isotopes
18   
21
17   
22

Electronegativity
  
  

Pauling Electronegativity
1.90   
11
1.60   
23

Sanderson Electronegativity
Not Available   
1.42   
16

Allred Rochow Electronegativity
1.36   
20
1.23   
25

Allen Electronegativity
1.51   
28
1.41   
31

Electropositivity
  
  

Pauling Electropositivity
2.10   
99+
2.40   
31

Ionization Energies
  
  

1st Energy Level
702.00 kJ/mol   
36
652.10 kJ/mol   
99+

2nd Energy Level
1,470.00 kJ/mol   
99+
1,380.00 kJ/mol   
99+

3rd Energy Level
2,850.00 kJ/mol   
33
2,416.00 kJ/mol   
99+

4th Energy Level
Not Available   
3,700.00 kJ/mol   
99+

5th Energy Level
Not Available   
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
0.52 g/amp-hr   
99+
0.69 g/amp-hr   
99+

Electron Work Function
Not Available   
4.30 eV   
18

Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   

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