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Neon (Ne), chemical element, inert gas of group 18 (noble gases) of the routine table, supplied in electrical signs and also fluorescent lamps. Colourless, odourless, tasteless, and lighter 보다 air, neon gas wake up in minute amounts in earth atmosphere and trapped in ~ the rocks of earth crust. Though neon is about 31/2 time as numerous as helium in the atmosphere, dried air has only 0.0018 percent neon by volume. This facet is more abundant in the cosmos 보다 on Earth. Neon liquefies in ~ −246.048 °C (−411 °F) and freezes at a temperature just 21/2° lower. As soon as under low pressure, it emits a bright orange-red irradiate if one electrical present is passed v it. This residential or commercial property is made use of in neon indications (which an initial became acquainted in the 1920s), in part fluorescent and gaseous conduction lamps, and in high-voltage testers. The surname neon is obtained from the Greek native neos, “new.”

Neon was found (1898) through the brothers chemists sir William Ramsay and also Morris W. Travers together a ingredient of the most volatile portion of liquefied crude oil argon derived from air. It was automatically recognized as a brand-new element by its unique glow as soon as electrically stimulated. Its just commercial resource is the atmosphere, in which that is 18 components per million through volume. Due to the fact that its boiling suggest is −246 °C (−411 °F), neon remains, in addition to helium and hydrogen, in the small fraction of air that resists liquefaction upon cooling to −195.8 °C (−320.4 °F, the boiling point of liquid nitrogen). Neon is isolated from this cold, gas mixture by bringing the into contact with caused charcoal, which adsorbs the neon and hydrogen; removal of hydrogen is effected by including enough oxygen to transform it every to water, which, along with any excess oxygen, condenses upon cooling. Handling 88,000 pounds of fluid air will create one lb of neon.


The periodic table is consisted of of 118 elements. Exactly how well carry out you understand their symbols? In this quiz you will do it be presented all 118 chemistry symbols, and you’ll require to choose the surname of the chemical facet that each one represents.

No steady chemical compounds of neon have been observed. Molecule of the facet consist of single atoms. Organic neon is a mixture that three stable isotopes: neon-20 (90.92 percent); neon-21 (0.26 percent); and also neon-22 (8.82 percent). Neon was the first element shown to consist of of more than one stable isotope. In 1913, application of the an approach of fixed spectrometry revealed the visibility of neon-20 and neon-22. The third stable isotope, neon-21 was detected later. Twelve radioactive isotope of neon likewise have been identified.

Element Propertiesatomic numberatomic weightmelting pointboiling pointdensity (1 atm, 0° C)oxidation stateelectron config.

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−248.67 °C (−415.5 °F)
−246.048 °C (−411 °F)
0.89990 g/litre

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