Xenon's symbol is Xe. It's atomic number is 54 and it's atomic mass is 131.29. It has 54 protons, 54 electrons, and 78 neutrons. Xenon's melting point is -111.8° Celsius and the boiling point is -108.1° Celsius. It's normal phase is a gas and is classified as a nonmetal. Xenon is part of the noble gas family.
William Ramsay and Morris Travers discovered the element Xenon in 1898.
The word Xenon comes from the Greek root "xenos" meaning stranger.
Xenon is used in photographic flashes, x-rays, and even in medicine as a general anesthetic and it is a toxic substance.