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Chemical Properties of Tungsten and Samarium

Tungsten
Samarium
Chemical Properties of Samarium and Tungsten


Chemical Properties
Chemical Formula
W   
Sm   
Isotopes
  
  
Known Isotopes
33   
6
30   
9
Electronegativity
  
  
Pauling Electronegativity
2.36   
2
1.17   
40
Sanderson Electronegativity
0.98   
23
Not Available   
Allred Rochow Electronegativity
1.40   
19
1.07   
32
Allen Electronegativity
1.47   
29
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.64   
99+
2.83   
14
Ionization Energies
  
  
1st Energy Level
770.00 kJ/mol   
16
544.50 kJ/mol   
99+
2nd Energy Level
1,700.00 kJ/mol   
29
1,070.00 kJ/mol   
99+
3rd Energy Level
Not Available   
2,260.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,990.00 kJ/mol   
37
Electrochemical Equivalent
1.14 g/amp-hr   
99+
1.87 g/amp-hr   
34
Electron Work Function
4.55 eV   
13
2.70 eV   
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes   
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