The chemical symbol for xenon is Xe. Xenon is a noble gas that is odorless, colorless, and occurs in trace amounts in the Earth's atmosphere. It belongs to group 18 in the periodic table, which is known for its lack of reactivity under standard conditions. Xenon has several applications including in light sources such as high-intensity discharge lamps and flash lamps, as well as in medical imaging and anesthetic procedures. Its unique properties make it important in specialized fields of science and technology.