What element has the symbol 'Ag'?

The story behind the answer

Ag is the symbol for Silver, derived from the Latin word argentum, meaning “shiny” or “white.” The other choices have different symbols: Aluminum is Al, Gold is Au (from aurum), and Argon is Ar.

Silver is famous for having the highest electrical and thermal conductivity of all metals, which is why it’s used in electronics, mirrors, and high-performance contacts. It also “tarnishes” by forming black silver sulfide (Ag2S) when exposed to sulfur compounds. Memory tip: think “Ag = argent = silver,” as in “argent” used for silver in heraldry and old coins. Also pair it with gold: Au is gold, Ag is silver—two precious metals, two Latin roots.