What is the difference between helium neon and argon

How is it similar? Chemistry Matter Elements. David Drayer. Aug 10, Helium having the smallest outer electron shell needs only two electrons to fill first shell. It is also used in metal refining, some "neon" lights argon produces a blue light , some food packaging to provide an inert atmosphere to reduce spoilage , in the tires of some luxury cars in place of air, and in lasers used in eye surgery.

Argon is produced by the radioactive decay of potassium; the potassium nucleus undergoes electron capture to produce the stable argon nucleus. The ratio of potassium to argon in some rocks can be used to determine the age of the rock. Recently, the first argon compound, argon fluorohydride HArF , was reported , which is stable up to 27 K. I'm waiting for hydrogen to be replaced by boron: I think a molecule that spells out "BArF" would be worth investigating. Or not. Krypton is a colorless, odorless, unreactive gas which liquefies at It is found in the Earth's crust at a concentration of 10 ppt, making it the 81st most abundant element; it is found in the atmosphere at a concentration of 1 ppm by volume.

Krypton which is used commercially is extracted from liquid air by fractional distillation. Krypton was discovered in by Sir William Ramsay and his assistant, Morris Travers, in a sample of argon gas extracted from the atmosphere. The name "krypton" is derived from the Greek word kryptos , meaning "hidden" which has nothing to do with the home planet of Superman.

Krypton is used in some "neon" lights, producing a violet color when electricity is passed through it. Radioactive kyrypton is produced in nuclear reactors and nuclear processing plants; monitoring krypton in the atmosphere allowed the United States to monitor how much nuclear material the Soviet Union was using. Xenon is a colorless, odorless, unreactive gas which liquefies at It is found in the Earth's crust at a concentration of 2 ppt, making it the 83rd most abundant element; it is found in the atmosphere at a concentration of 90 ppb by volume.

Xenon which is used commercially is extracted from liquid air by fractional distillation. Xenon was also discovered by Ramsay and Travers in Is Iceland underlain by a plume in the lower mantle? Seismology and helium isotopes, Geophys. Graham, D. Porcelli, R. Ballentine, Reviews in Mineralogy and Geochemistry, Mineral. Hart, R, Dymond, J.

Preferential formation of the atmosphere-sialic crust system from the upper mantle. Hiyagon, H. Retention of solar helium and neon in IDPs in deep sea sediment. Noble gases in submarine glasses from mid-ocean ridges and Loihi seamount: constraints on the early history of the Earth. Acta 56 , Honda, M. Noble gases in diamonds: occurrences of solar-like helium and neon. Possible solar noble-gas component in Hawaiian basalts. Javoy, M. Pineau, Kaneoka, I. Rare gas isotopes in Hawaiian ultramafic nodules and volcanic rocks: constraints on genetic relationships.

Science , —8. Kellog, L. The role of plumes in mantle helium fluxes. Kurz, M. Cosmogenic helium in a terrestrial rock. Matsuda, J. He and Ne isotopic studies on the extraterrestrial material in deep-sea sediments. McDougall, I. Jackson, Ed. Meibom, A. Anderson, N. Sleep, R. Frei, C. Chamberlain, M. Hren and J. Wooden, Anderson, Statistical upper mantle assemblage, Earth Planet. Merrihue, C. Rare gas evidence for cosmogenic dust in modern Pacific red clay. Moreira, M. Breddam, J. Curtice and M.

Kurz, Solar neon in the Icelandic mantle: new evidence for an undegassed lower mantle, Earth Planet.

Natland, J. Nier, A. Helium and neon in stratospheric particles. Meteoritics 25 , At these temperatures the metal would react with any oxygen present which is why an inert gas is needed. Krypton is used to produce white light for photography — again an electrical current is passed through the gas so it emits light. Radon is a radioactive element. Radon gas is formed by decay of other radioactive elements and the concentration in the environment depends upon the types of rocks on which you live.

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