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Chemical Properties of Iron and Niobium

Iron
Niobium
Chemical Properties of Niobium and Iron


Chemical Properties
Chemical Formula
Fe   
Nb   
Isotopes
  
  
Known Isotopes
26   
13
17   
22
Electronegativity
  
  
Pauling Electronegativity
1.83   
14
1.60   
23
Sanderson Electronegativity
2.20   
7
1.42   
16
Allred Rochow Electronegativity
1.64   
8
1.23   
25
Allen Electronegativity
1.80   
12
1.41   
31
Electropositivity
  
  
Pauling Electropositivity
2.17   
40
2.40   
31
Ionization Energies
  
  
1st Energy Level
762.50 kJ/mol   
17
652.10 kJ/mol   
99+
2nd Energy Level
1,561.90 kJ/mol   
36
1,380.00 kJ/mol   
99+
3rd Energy Level
2,957.00 kJ/mol   
29
2,416.00 kJ/mol   
99+
4th Energy Level
5,290.00 kJ/mol   
16
3,700.00 kJ/mol   
99+
5th Energy Level
7,240.00 kJ/mol   
16
4,877.00 kJ/mol   
36
6th Energy Level
9,560.00 kJ/mol   
14
9,847.00 kJ/mol   
11
7th Energy level
12,060.00 kJ/mol   
15
12,100.00 kJ/mol   
14
8th Energy Level
14,580.00 kJ/mol   
14
Not Available   
9th Energy Level
22,540.00 kJ/mol   
5
Not Available   
10th Energy Level
25,290.00 kJ/mol   
8
Not Available   
11th Energy Level
28,000.00 kJ/mol   
9
Not Available   
12th Energy Level
31,920.00 kJ/mol   
9
Not Available   
13th Energy Level
34,830.00 kJ/mol   
9
Not Available   
14th Energy Level
37,840.00 kJ/mol   
11
Not Available   
15th Energy Level
44,100.00 kJ/mol   
11
Not Available   
16th Energy Level
47,206.00 kJ/mol   
13
Not Available   
17th Energy Level
122,200.00 kJ/mol   
1
Not Available   
18th Energy Level
131,000.00 kJ/mol   
2
Not Available   
19th Energy Level
140,500.00 kJ/mol   
3
Not Available   
20th Energy Level
152,600.00 kJ/mol   
5
Not Available   
21st Energy Level
163,000.00 kJ/mol   
5
Not Available   
22nd Energy Level
173,600.00 kJ/mol   
4
Not Available   
23rd Energy Level
188,100.00 kJ/mol   
4
Not Available   
24th Energy Level
195,200.00 kJ/mol   
1
Not Available   
Electrochemical Equivalent
0.69 g/amp-hr   
99+
0.69 g/amp-hr   
99+
Electron Work Function
4.70 eV   
10
4.30 eV   
18
Other Chemical Properties
Corrosion, Ionization, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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