noble gas

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noble gas

n.
Any of the elements in Group 18 of the periodic table, including helium, neon, argon, krypton, xenon, and radon, which are monatomic and with limited exceptions chemically inert. Also called rare gas.

noble gas

n
(Chemistry) another name for inert gas1

no′ble gas′


n.
any of the chemically inert gaseous elements of group 8A or 0 of the periodic table: helium, neon, argon, krypton, xenon, and radon. Also called inert gas.
[1900–05]

no·ble gas

(nō′bəl)
Any of the six gases helium, neon, argon, krypton, xenon, and radon. Because the outermost electron shell of atoms of these gases is full, they do not react chemically with other substances except under certain special conditions. Also called inert gas. See Periodic Table.
Word History What makes a noble gas so noble? The noble gases are a group of six chemical elements, normally occurring in gaseous form, that do not react chemically with other elements or chemical compounds except very rarely. Helium and neon are two familiar examples. The fact that the noble gases do not mix with other elements became the basis for a comparison with nobility. The nobility—the class that rules many societies and includes royalty—usually keep to themselves and do not mix with common folk.

noble gas

Any of a series of elements that are mostly inert and monatomic, for example argon and helium.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.noble gas - any of the chemically inert gaseous elements of the helium group in the periodic tablenoble gas - any of the chemically inert gaseous elements of the helium group in the periodic table
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
Ar, argon, atomic number 18 - a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
atomic number 2, He, helium - a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
atomic number 36, Kr, krypton - a colorless element that is one of the six inert gasses; occurs in trace amounts in air
atomic number 10, Ne, neon - a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
atomic number 86, radon, Rn - a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
atomic number 54, Xe, xenon - a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts
gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
Translations
vzácný plyn
nobla gaso
väärisgaas
jalokaasu
gaz noble
plemeniti plin
貴ガス
edelgas
gaz szlachetny
ädelgas
References in periodicals archive ?
ISLAMABAD:Researchers have developed a novel and more accurate method to measure ocean temperatures by using the concentration of noble gases in Antarctic ice, which helps to conclude on the changes in sea temperature from the last ice age to the present day, according to the Swiss Federal Laboratories for Materials Science and Technology (EMPA).
The main focus of this new CRP will be the implementation of several isotope hydrology assessments of deep/large aquifer systems using long-lived radionuclides, isotope age tracers and noble gases (carbon-14, krypton-81, chlorine-36, helium-4, etc).
Among the topics are obtaining gas phase NMR parameters from molecular beam and high-resolution microwave spectroscopy, gas phase NMR for studying chemical reactions: kinetics and product identification, accurate non-relativistic calculations of NMR shielding constants, rovibrational and temperature effects in theoretical studies of NMR parameters, and optical hyperpolarization of noble gases for medical imaging.
But, the study said, young Earth was way too hot to hold on to those volatile elements, which also included other noble gases like helium as well as hydrogen, carbon and nitrogen - they would have boiled off the whistling kettle that was Earth and into outer space.
There are six naturally occurring noble gases - helium, neon, argon, krypton, xenon, and radon.
USPRwire, Sun Nov 08 2015] Noble gases, also known as inert gases or aerogens, are a group of elements that exhibit chemical inertness on account of their unique atomic structure.
Researchers at the University of Wisconsin have discovered a cheap and efficient alternative to the use of noble gases as a catalyst in hydrogen production -- a combination of phosphorus and sulfur (common elements) and cobalt, a metal 1,000 times cheaper than the cheapest noble metals.
TEHRAN (FNA)- New work used laboratory techniques to mimic stellar and planetary conditions, and observe how noble gases behave under these conditions, in order to better understand the atmospheric and internal chemistry of these celestial objects.
Players pass around ion and noble gas cards to win points by building the compounds and collecting sets of noble gases.
The method that the researchers used to track the source of methane contamination relies on the basic physics of the noble gases (which happen to leak out along with the methane).
com)-- Krypton, Xenon and Neon are the major rare gases, which form a part of noble gases group in the periodic table.
The longer a fluid sits in the Earth over time, the more it interacts with the rock and creates radiogenic isotopes of the noble gases.