Xenon is a chemical element with the symbol XE and a atomic number 54. Xenon is dull, colorless, dense, odorless noble gas that occurs in the earth's atmosphere in trace amounts. The atomic mass for Xenon is 131.29. Xenon was discovered by Sir William Ramsay and Morris M. Travers on July, 12, 1898. Sir William Ramsay was a scottish chemist while Morris M Tavers was an english chemist. Xenon was shortly discovered after the elements Krypton and Neon. Xenon is used in photographic flash lamos, stroboscopic lambs, bacterical lamps and high intensive arc lamps for motion projection while the high pressure arc lamps to produce ultraviolet light. Today Xenon is used in medicine as a general anesthetic and in medical imaging. Xenon is not reactive but it is a noble gas. However, it can be made to form compounds but needs more extreme conditions. Xenon helps plants and without it, it could kill the pants and its earth atomsphere would be gone.