chemical element with symbol Sn (from Latin: stannum) and atomic number 50. It is a post-transition metal in group 14 of the periodic table. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide, SnO2. Tin shows a chemical similarity to both of its neighbors in group 14, germanium and lead.

Atomic Weight: 4242
Density:       34.64 g/cm3
Melting Point: 3454 °C
Boiling Point: 7557