Thallium element has 81 protons, 123 neutrons and 81 electrons.
Thallium is a soft metal at room temperature.
The melting point of Thallium metal is 304 ̊C.
» Common Thallium compounds:
• Thallium(III) Bromide, TlBr3
• Thallium(I) Phosphate, Tl3PO4
• Thallium(III) Nitrite, Tl(NO2)3
• Thallium(I) Hexafluorophosphate, TlPF6
• Thallium Thiocyanate, TlSCN
• Thallium(III) Hydroxide, Tl(OH)3
• Thallium(I) Hydroxide, TlOH