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Chemical Properties of Platinum and Promethium

Platinum
Promethium
Chemical Properties of Promethium and Platinum


Chemical Properties
Chemical Formula
Pt   
Pm   
Isotopes
  
  
Known Isotopes
35   
4
27   
12
Electronegativity
  
  
Pauling Electronegativity
2.28   
3
Not Available   
Allred Rochow Electronegativity
1.44   
17
1.07   
32
Allen Electronegativity
1.72   
16
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.72   
99+
Not Available   
Ionization Energies
  
  
1st Energy Level
870.00 kJ/mol   
10
540.00 kJ/mol   
99+
2nd Energy Level
1,791.00 kJ/mol   
21
1,050.00 kJ/mol   
99+
3rd Energy Level
Not Available   
2,150.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,970.00 kJ/mol   
38
Electrochemical Equivalent
1.82 g/amp-hr   
35
1.80 g/amp-hr   
36
Electron Work Function
5.65 eV   
1
Not Available   
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization   
Ionization, Radioactive Isotopes, Solubility   
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