The chemical symbol for copper is "Cu." This symbol is derived from the Latin word "cuprum," which means "from the island of Cyprus," an area known for its copper mines in antiquity. Copper is a transition metal with atomic number 29 and is well-known for its electrical conductivity, malleability, and ductility. It is widely used in electrical wiring, plumbing, and as an essential component in various alloys, including bronze and brass. Copper also plays a significant role in biological processes as an essential trace element for many living organisms.