rare gases
Oxford Dictionary of Geography:
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rare gases
Also known as noble or inert gases, these are uncommon gases such as neon or krypton which are chemically unreactive.
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Oxford Dictionary of Geography
A Dictionary of Geography. Copyright © Susan Mayhew 1992, 1997, 2004. All rights reserved.
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Mentioned in
inert gas
(in chemistry)
liquid air
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Breakdown potential
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