Tin is a poor metal that is used with many commonly used objects and has the Atomic number of 50 on the Periodic Table of the Elements, with the Atomic Symbol Sn. When exposed to air it oxidizes, but resists corrosion and rust. It also has a melting point of 449.47ºF (231.93ºC). Tin, when mixed with copper creates an alloy known as bronze, which is much stronger, yet can be worked with if using a blacksmith's tools. Tin also has the most isotopes of any element.