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Chemical Properties of Thallium and Fermium


Chemical Properties of Fermium and Thallium


Chemical Properties

Chemical Formula
Tl   
Fm   

Isotopes
  
  

Known Isotopes
32   
7
18   
21

Electronegativity
  
  

Pauling Electronegativity
1.62   
21
1.30   
32

Sanderson Electronegativity
2.25   
5
Not Available   

Allred Rochow Electronegativity
1.44   
17
1.20   
27

Mulliken-Jaffe Electronegativity
1.96   
6
Not Available   

Allen Electronegativity
1.79   
13
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.38   
33
2.70   
22

Ionization Energies
  
  

1st Energy Level
589.40 kJ/mol   
99+
627.00 kJ/mol   
99+

2nd Energy Level
1,971.00 kJ/mol   
14
1,225.00 kJ/mol   
99+

3rd Energy Level
2,878.00 kJ/mol   
32
2,363.00 kJ/mol   
99+

4th Energy Level
Not Available   
3,792.00 kJ/mol   
99+

Electrochemical Equivalent
7.63 g/amp-hr   
2
3.20 g/amp-hr   
13

Electron Work Function
3.84 eV   
28
Not Available   

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

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