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More About Krypton
What the name means: The word krypton comes from the Greek word kryptos, meaning "hidden".
Who identified krypton?: Krypton was first identified by Sir William Ramsay and his assistant, Morris William Travers, in 1898. Using Carle von Linde's recently developed method of making liquid air, the two British scientists liquefied 1dm3 of air. After removing the oxygen gas, nitrogen gas and argon from the sample they were left with about 25cm3 of the original 1dm3 of liquid air. They used a spectroscope to identify the chemicals in this small sample. The spectra included very intense yellow and green bands that had not been observed before. The two scientists went on to isolate a new element which, from its density (mass/volume) was placed between bromine and rubidium in the periodic table.
STP = standard temperature and pressure.
About krypton: Krypton belongs to the group of rare gases (group 0 in the periodic table). It is found in very small quantities in the atmosphere, about 0,0001% in any sample of air. It is unreactive, although it will chemically combine with fluorine gas. Krypton is used in fluorescent lights.
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