Tl
81 post-transition metal Generado con IA
Talio
Symbol Tl
Atomic Mass 204.38
Thallium is a chemical element with symbol Tl and atomic number 81. This soft gray post-transition metal is not found free in nature. When isolated, it resembles tin, but discolors when exposed to air.
Properties
- Phase: Solid
- Density: 11.85 g/cm³
- Melting Point: 577 K
- Boiling Point: 1746 K