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Xe  Xenon Xenon in the periodic table Xenon was discovered when Scottish chemist Sir William Ramsay and Engish chemist Morris M. Travers were experimenting with the recently discovered element, Krypton on July 12, 1898. During their study, Ramsay and Travers distilled the Krypton and isolated the excess gas (Xenon). They later noticed that the other gas emitted an alluring blue glow while in the vacuum tube that it was stored in. They called the mysterious gas Xenon, derived from the Greek root "Xenos" which means stranger. Today, it is much easier to extract Xenon from the air because we have more advanced technology. Once extracted, Xenon emits a visible blue / lavender glow. However, in its natural gaseous state Xenon is colorless. Xenon makes up only 0.0000087% of the Earth's atmosphere but it does have many other uses. It is most frequently used in photography and video capturing. Xenon is a part of photographic flashes, ...