xenon

 Element Name: Xenon Element Symbol: Xe Atomic Number: 54 Most Common Mass Number: 131.29 Physical State at Room Temperature: gas Meaning of the Element's Name or Latin/Greek Name: Stranger Uses of the Element: strobe lights, special lamps that are used to kill bacteria and to powder ruby lasers. Who Discovered the Element: Sir William Ramsay, Morris M. Travers How the Element was Discovered: Study of liquefied air Physical Properties of the Element: colorless gas Chemical Properties of the Element: gas Common Compounds of the Element: Halogens, oxygen, and hydrogen Isotopes of the Element: Xe-124, I-123, I-125, I-123, Xe-129, Xe-136, Xe-126, Ba-128 __**Sources:**__ [|www.webelements.com], http://environmentalchemistry.com/yogi/periodic/Xe.html, http://www.periodic-table.org.uk/element-xenon.htm

http://speringelements.wikispaces.com/germanium (germanium link)