What is the chemical abbreviation for copper?

Explanation

Copper (named after Cyprus) is the 29th element in the periodic table and has the chemical symbol Cu. This transition metal appears as a shiny metal with a characteristic reddish color. When oxidized, the surface is converted into an oxide called verdigris, whose green color is particularly known from copper roofs and statues. Copper is one of the few metals that occurs in pure form in nature. For that reason, humans have had access to and used copper for at least 10,000 years.