What element has the symbol 'Cu'?

The story behind the answer

Cu is the symbol for copper, from the Latin name cuprum (after Cyprus, where it was mined). That’s why it isn’t “Co” (cobalt), “Ca” (calcium), or “C” (carbon). Many elements use Latin-based symbols—think Fe for iron and Na for sodium—so Cu fits that pattern.

Copper is a reddish metal prized for its excellent electrical and thermal conductivity, making it essential in wiring and electronics. It also forms a green patina (copper carbonate) on statues like the Statue of Liberty. Memory tip: “Cu = cuprum = copper,” or “See you (Cu) in the wires.”