noble gas

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noble gas:

see inert gasinert gas
or noble gas,
any of the elements in Group 18 of the periodic table. In order of increasing atomic number they are: helium, neon, argon, krypton, xenon, and radon. They are colorless, odorless, tasteless gases and were once believed to be entirely inert, i.e.
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noble gas

[′nō·bəl ′gas]
(chemistry)
A gas in group 0 of the periodic table of the elements; it is monatomic and, with limited exceptions, chemically inert. Also known as inert gas; rare gas.
References in periodicals archive ?
As cooling water absorbs noble gases from the atmosphere and warming water releases them, the concentration of noble gases in these ice core bubbles can help scientists estimate the average temperature of the ocean at the time.
Technavio's report, Global Noble Gases Market 2015-2019, has been prepared based on an in-depth market analysis with inputs from industry experts.
The team used a diamond-anvil cell to bring the noble gases helium, neon, argon, and xenon to more than 100,000 times the pressure of Earth's atmosphere (15-52 gigapascals), and used a laser to heat them to temperatures ranging up to 50,000 degrees Fahrenheit (about 28,000 degrees Kelvin).
And since the method that the researchers employed relies on the basic physics of the noble gases, it can be employed anywhere.
The amount of noble gases carried into the aquifers depends on a variety of environmental factors.
Helium, one of the noble gases, has a range of unique properties--including the lowest boiling point of all gases, high thermal conductivity and non-flammability--that make it useful, if not essential, in science and engineering.
The activities of Linde and Spectra overlap on the European Economic Area (EEA) markets for a number of specialty gases, such as noble gases, inert gas mixtures, brominated compound gas mixtures and fluorine gas mixtures.
The noble gases krypton and xenon are indeed beta and gamma emitters.
Typical cover gases include nitrogen, non-combustible gases, noble gases and dehydrated air.
We expected to see all the common noble gases like krypton, xenon, and argon," says GCMS chief scientist Hasso Niemann (NASA/Goddard Space Flight Center).
This offers qualitative justification of some experimental results obtained by BEUTLER in studies of absorption arc spectra of noble gases and [I.
Most of this volume is made up of inert compounds and noble gases, so called because they don't react with their surroundings very much, if at all.