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Chemical Properties of Indium and Protactinium

Indium
Protactinium
Chemical Properties of Protactinium and Indium


Chemical Properties
Chemical Formula
In   
Pa   
Isotopes
  
  
Known Isotopes
35   
4
27   
12
Electronegativity
  
  
Pauling Electronegativity
1.78   
16
1.50   
27
Sanderson Electronegativity
2.14   
8
Not Available   
Allred Rochow Electronegativity
1.49   
13
1.14   
28
Mulliken-Jaffe Electronegativity
1.76   
10
Not Available   
Allen Electronegativity
1.66   
18
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.22   
38
2.50   
27
Ionization Energies
  
  
1st Energy Level
558.30 kJ/mol   
99+
568.00 kJ/mol   
99+
2nd Energy Level
1,820.70 kJ/mol   
18
1,128.00 kJ/mol   
99+
3rd Energy Level
2,704.00 kJ/mol   
39
1,814.00 kJ/mol   
99+
4th Energy Level
5,210.00 kJ/mol   
17
2,991.00 kJ/mol   
99+
Electrochemical Equivalent
1.43 g/amp-hr   
99+
1.72 g/amp-hr   
99+
Electron Work Function
4.12 eV   
24
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
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