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Chemical Properties of Protactinium and Iron

Protactinium
Iron
Chemical Properties of Iron and Protactinium


Chemical Properties
Chemical Formula
Pa   
Fe   
Isotopes
  
  
Known Isotopes
27   
12
26   
13
Electronegativity
  
  
Pauling Electronegativity
1.50   
27
1.83   
14
Sanderson Electronegativity
Not Available   
2.20   
7
Allred Rochow Electronegativity
1.14   
28
1.64   
8
Allen Electronegativity
Not Available   
1.80   
12
Electropositivity
  
  
Pauling Electropositivity
2.50   
27
2.17   
40
Ionization Energies
  
  
1st Energy Level
568.00 kJ/mol   
99+
762.50 kJ/mol   
17
2nd Energy Level
1,128.00 kJ/mol   
99+
1,561.90 kJ/mol   
36
3rd Energy Level
1,814.00 kJ/mol   
99+
2,957.00 kJ/mol   
29
4th Energy Level
2,991.00 kJ/mol   
99+
5,290.00 kJ/mol   
16
5th Energy Level
Not Available   
7,240.00 kJ/mol   
16
6th Energy Level
Not Available   
9,560.00 kJ/mol   
14
7th Energy level
Not Available   
12,060.00 kJ/mol   
15
8th Energy Level
Not Available   
14,580.00 kJ/mol   
14
9th Energy Level
Not Available   
22,540.00 kJ/mol   
5
10th Energy Level
Not Available   
25,290.00 kJ/mol   
8
11th Energy Level
Not Available   
28,000.00 kJ/mol   
9
12th Energy Level
Not Available   
31,920.00 kJ/mol   
9
13th Energy Level
Not Available   
34,830.00 kJ/mol   
9
14th Energy Level
Not Available   
37,840.00 kJ/mol   
11
15th Energy Level
Not Available   
44,100.00 kJ/mol   
11
16th Energy Level
Not Available   
47,206.00 kJ/mol   
13
17th Energy Level
Not Available   
122,200.00 kJ/mol   
1
18th Energy Level
Not Available   
131,000.00 kJ/mol   
2
19th Energy Level
Not Available   
140,500.00 kJ/mol   
3
20th Energy Level
Not Available   
152,600.00 kJ/mol   
5
21st Energy Level
Not Available   
163,000.00 kJ/mol   
5
22nd Energy Level
Not Available   
173,600.00 kJ/mol   
4
23rd Energy Level
Not Available   
188,100.00 kJ/mol   
4
24th Energy Level
Not Available   
195,200.00 kJ/mol   
1
Electrochemical Equivalent
1.72 g/amp-hr   
99+
0.69 g/amp-hr   
99+
Electron Work Function
Not Available   
4.70 eV   
10
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Corrosion, Ionization, Solubility   
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