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Periodic Table

Picture of  Thallium

 Atomic No. Order:

 Alphabetic Order:

Ground State Electron Configuration of  Thallium
Symbol: Tl
Atomic Number: 81
Atomicmass: 204.383 g.mol -1
Electronegative (According to Pauling): 1.8
Density: 11.71 g.cm-3 at 20°C
Melting Point: 1800 °C
Boiling Point: 4200 °C
Venderwaals Radius: 0.182 nm
Ionic Radius: 0.099 nm
Isotopes: 11
Electronic Shell: [ Xe ] 4f14 5d10 6s2 6p1
Energy Of First Ionization: 589.1 kJ.mol -1  


No of Protons
Standard Potential:

Electron in Full Shell
Discoverd By: Discovered by Sir William Crookes in 1861

Electron in Partial Shell

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