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Chemical Properties of Neptunium and Platinum


Chemical Properties of Platinum and Neptunium


Chemical Properties

Chemical Formula
Np   
Pt   

Isotopes
  
  

Known Isotopes
20   
19
35   
4

Electronegativity
  
  

Pauling Electronegativity
1.36   
29
2.28   
3

Allred Rochow Electronegativity
1.22   
26
1.44   
17

Allen Electronegativity
Not Available   
1.72   
16

Electropositivity
  
  

Pauling Electropositivity
2.64   
25
1.72   
99+

Ionization Energies
  
  

1st Energy Level
604.50 kJ/mol   
99+
870.00 kJ/mol   
10

2nd Energy Level
1,128.00 kJ/mol   
99+
1,791.00 kJ/mol   
21

3rd Energy Level
1,997.00 kJ/mol   
99+
Not Available   

4th Energy Level
3,242.00 kJ/mol   
99+
Not Available   

Electrochemical Equivalent
1.77 g/amp-hr   
39
1.82 g/amp-hr   
35

Electron Work Function
Not Available   
5.65 eV   
1

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

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