Vàng, or gold, is a precious metal known for its bright yellow color and luster. It is highly valued for its rarity, durability, and resistance to tarnish. Gold has been used for centuries in jewelry, coins, and as a form of currency. Its unique properties make it an important material in various industries, including electronics and dentistry. Gold is often measured in karats, with pure gold being 24 karats. It is also commonly alloyed with other metals, such as bạc (silver) or đồng (copper), to enhance its strength and alter its color. Gold mining and trading are significant economic activities in many countries.