Xenon
Videos
Xenon is a chemical element; it has symbol Xe and atomic number 54. It is a dense, colorless, odorless noble gas found in Earth's atmosphere in trace amounts. Although generally unreactive, it can und
A xenon-filled discharge tube glowing light blue
An acrylic cube specially prepared for element collectors containing a glass ampoule of liquefied xenon
A layer of solid xenon building inside a high voltage apparatus. The layer of solid xenon (white color) is surrounded by liquid xenon (transparent).
Liquid (featureless) and crystalline solid Xe nanoparticles produced by implanting Xe+ ions into aluminium at room temperature
Krypton
Videos
Krypton is a chemical element; it has symbol Kr and atomic number 36. It is a colorless, odorless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fl
Xenon
…in England by the Scottish chemist William Ramsay and English chemist Morris Travers on July 12, 1898, shortly after their discovery of the elements krypton and neon. They found xenon in the residue left over from evaporating components of liquid air. Ramsay suggested the name xenon for this gas from the…
A krypton-filled discharge tube glowing white
Sir William Ramsay, the discoverer of krypton
Kr(H2)4 and H2 solids formed in a diamond anvil cell
Krypton gas discharge tube