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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
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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