Facts about Krypton
Like xenon, krypton is highly volatile when it is near surface waters, and Kr-81 has therefore been used for dating old (50,000 - 800,000 year) groundwater.
Krypton can also form "clathrates" (cage-like molecules) with water, when atoms of the element are trapped in a lattice of water molecules.
Other fluorides and a salt of a krypton oxoacid have also been made.
The concentration of krypton in earth's atmosphere is about one part per million (ppm).
In 1960, an international agreement defined the meter in terms of light emitted from a krypton isotope.
Solidified krypton is white and crystalline, with a face-centered cubic structure, which is a common property of all "rare gases."
Certain amounts of energy are added to force krypton gas to react with fluorine gas to produce the KrF excited state complex.
Krypton (Greek ???????, meaning "hidden") was discovered in Great Britain in 1898 by Sir William Ramsay and Morris Travers.
Krypton is inert for most practical purposes, but it is known to form compounds with fluorine.
At the University of Helsinki in Finland, HKrCN and HKrCCH (krypton hydride-cyanide and hydrokryptoacetylene) were synthesized and determined to be stable up to a temperature of 40K.
Naturally occurring krypton is made up of five stable and one slightly radioactive isotope.
Kr-81 is the product of atmospheric reactions with the other naturally occurring isotopes of krypton.
Just 23 years later, the krypton-based standard was replaced by a measure of the speed of light—the most reliable constant in the universe.
Krypton's spectral signature is easily produced with some very sharp lines.
Krzywinski and Besansky (2002) state that phylogenetic evidence suggests the Anopheles mosquitoes originated in South America, spread throughout the Laurasia supercontinent, and and re-entered the tropics from the north.
Krypton is used in some types of photographic flashes used in high speed photography. Some fluorescent light bulbs are filled with a mixture of krypton and argon gases. Krypton gas is also combined with other gases to make luminous signs that glow with a greenish-yellow light.
Krypton (from the Greek word kryptos, meaning "hidden"), is the second heaviest of the noble gases . It was discovered in 1898 by Sir William Ramsay and Morris Travers during their experiments with liquid air, air that has been liquefied by cooling. ... At room temperature krypton is a colorless, odorless gas.
Although traces of krypton are found in various minerals, the most important source of krypton is Earth's atmosphere. Air is also the most important source for the other noble gases, with the exception of helium (obtained from natural gas) and radon (obtained as a byproduct of the decay of radioactive elements).
The earth's atmosphere is roughly 0.0001% krypton, or about one part per million. Krypton is a colorless, odorless gas that rarely reacts with other elements. A container full of krypton gas looks just like a container full of air.
Then it's time to use an inert gas like krypton to surround your very active and hot flash filament. Non-reactive gases like argon and krypton are great when it comes to getting them to glow. Over time, krypton has been used in the fluorescent lights. They are probably buzzing over your head right now.
kryptos "the hidden one") is a chemical element with symbol Kr and atomic number 36. ... A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. With rare exceptions, krypton is chemically inert.
Although traces of krypton are found in various minerals, the most important source of krypton is Earth's atmosphere. Air is also the most important source for the other noble gases, with the exception of helium (obtained from natural gas) and radon (obtained as a byproduct of the decay of radioactive elements).
Krypton was discovered by Sir William Ramsay, Morris W. Travers in 1898 at Great Britain. Origin of name: from the Greek word "kryptos" meaning "hidden". Krypton was discovered in 1898 by Sir William Ramsay and his student Morris Travers in the residue left after liquid air had nearly boiled away.
In the early 1960s, however, krypton was found to react with the element fluorine when both are combined in an electrical-discharge tube at −183 °C (−297 °F); the compound formed is krypton difluoride, KrF2.Jan 24, 2018