What is tin?

Tin is a chemical element. It is often obtained from a mineral called cassiterite (SnO2) and is extracted via cooking it in a furnace with carbon. It is often used as a protective coating on top of other metals (ex. tin cans [made from steel]) to protect them from rust.
Symbol: Sn (from the latin word Stannum)
Atomic number: 50
Mass number: 118.71
Group number: IVA/4A or 14
Period number: 5
Electron shell configuration: 1s22s22p63s23p63d104s24p64d105s25p2