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Chemical Properties of Thallium and Beryllium

Thallium
Beryllium
Chemical Properties of Beryllium and Thallium


Chemical Properties
Chemical Formula
Tl   
Be   
Isotopes
  
  
Known Isotopes
32   
7
9   
29
Electronegativity
  
  
Pauling Electronegativity
1.62   
21
1.57   
24
Sanderson Electronegativity
2.25   
5
1.81   
12
Allred Rochow Electronegativity
1.44   
17
1.47   
14
Mulliken-Jaffe Electronegativity
1.96   
6
1.54   
12
Allen Electronegativity
1.79   
13
1.58   
23
Electropositivity
  
  
Pauling Electropositivity
2.38   
33
2.43   
30
Ionization Energies
  
  
1st Energy Level
589.40 kJ/mol   
99+
899.50 kJ/mol   
7
2nd Energy Level
1,971.00 kJ/mol   
14
1,757.10 kJ/mol   
23
3rd Energy Level
2,878.00 kJ/mol   
32
14,848.70 kJ/mol   
2
4th Energy Level
Not Available   
21,006.60 kJ/mol   
2
Electrochemical Equivalent
7.63 g/amp-hr   
2
0.17 g/amp-hr   
99+
Electron Work Function
3.84 eV   
28
4.98 eV   
6
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility   
Corrosion, Ionization, Radioactive Isotopes   
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