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Radon - Dictionary Definition and Overview |
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Radon : (noun)
1: 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 [syn: Rn, atomic number
86]
Based on WordNet 2.0
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Radon : Symbol: Rn
Atomic number: 86
Atomic weight: (222)
Colorless radioactive gaseous element, belongs to the noble gases. Of the
twenty known isotopes, the most stable is Rn-222 with a half-life of 3.8 days.
Formed by the radioactive decay of Radium-226. Radon itself decays into
polonium. Used in radiotherapy. As a noble gas, it is effectively inert,
though radon fluoride has been synthesized. First isolated in 1908 by Ramsey
and Gray.
Based on Elements database 20001107 [ELEM_Dictionary]:
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Radon : Radon: A radioactive element formed as a gas during the breakdown of radium.
Based on Elements database 20001107 [ELEM_Dictionary]:
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