Gourt > Science > Chemistry > Elements > Radon
Radon is a chemical element in the periodic table that has the symbol Rn and atomic number 86. A radioactive noble gas that is formed by the disintegration of radium, radon is one of the heaviest gases and is considered to be a health hazard. The most stable isotope is Rn-222 which has a half-life of 3.8 days and is used in radiotherapy. Radon gas can accumulate in buildings, and drinking water, and cause lung cancer *, causing potentially 20,000 deaths in the European Union each year. Radon is a significant contaminant that impacts indoor air quality worldwide.
Notable characteristics
Essentially chemically inert, but radioactive, radon is the heaviest noble gas and one of the heaviest gases at room temperature. (The heaviest known gas is Uranium hexafluoride, UF6.) At standard temperature and pressure radon is a colorless gas but when it is cooled below its freezing point it has a brilliant phosphorescence which turns yellow as the temperature is lowered and orange-red at the temperature air liquefies.
Natural radon concentrations in Earth's atmosphere are so low that radon-rich water in contact with the atmosphere will continually lose radon by volatilization. Hence, ground water has a higher concentration of Rn-222 than surface water. Likewise, the saturated zone of a soil frequently has a higher radon content than the unsaturated zone due to diffusional losses to the atmosphere.
More on [ Radon ]
Noble Gases :: Elements
Radon :: Air Quality
Bad news: there may be a killer in your basement...silent & deadly. RADON GAS kills thousands each year....be informed: http://bit.ly/2EyTNY
Truckspector (Ken ) Sat, 07 Nov 2009 07:16:54 -0000
Bad news: there may be a killer in your basement...silent & deadly. RADON GAS kills thousands each year....be informed: http://bit.ly/2EyTNY
Water testing, mold testing, radon testing and COMPLETE HOME INSPECTIONS....Altamont Superior does it all: http://bit.ly/DA3Ih
Truckspector (Ken ) Sat, 07 Nov 2009 06:54:38 -0000
Water testing, mold testing, radon testing and COMPLETE HOME INSPECTIONS....Altamont Superior does it all: http://bit.ly/DA3Ih
Radon Testing and Dogs that Sing the Blues http://bit.ly/3nJ98g
livingwellness1 (Allyson King) Fri, 06 Nov 2009 22:16:39 -0000
Radon Testing and Dogs that Sing the Blues http://bit.ly/3nJ98g
@smcember that bites!!! Mold: highly unlikely there's a problem, Radon: don't hang out in the basement, but the title is a sticky wicket
DotWonder (Liz Melby) Fri, 06 Nov 2009 21:35:55 -0000
@smcember that bites!!! Mold: highly unlikely there's a problem, Radon: don't hang out in the basement, but the title is a sticky wicket
@akinyc: CONGRATS AKI - free tickets to Radon Ensemble w/Steve Mackay of Stooges, Soopa Collective, Sikhara, + many more. http://ow.ly/zYgH
issueproject (issueproject) Fri, 06 Nov 2009 21:32:30 -0000
@akinyc: CONGRATS AKI - free tickets to Radon Ensemble w/Steve Mackay of Stooges, Soopa Collective, Sikhara, + many more. http://ow.ly/zYgH
Radon Testing: The issue of radon testing in our schools has received some recent media attention. While the re.. http://bit.ly/2LiYjo
MTLSD (MtLebanon SD) Fri, 06 Nov 2009 21:26:29 -0000
Radon Testing: The issue of radon testing in our schools has received some recent media attention. While the re.. http://bit.ly/2LiYjo
ChemGlobe: Radon - Electronic, thermal, and steric data along with an isotope table.
Meta Description: [ The chemical element [Rn] - Radon - Datasheet ]
ChemicalElements.com: Radon - Basic information, atomic structure, and table of isotopes.
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EnvironmentalChemistry.com: Radon - Atomic structure, properties, and table of nuclides.
It's Elemental: Radon - Basic physical and historical information.
Meta Description: [ The Element Radon - Basic Physical and Historical Information ]
LANL: Radon - History, properties, uses, and handling.
Lenntech: Radon - Physical data, chemical properties, health and environmental effects.
Meta Description: [ chemical properties, health and environmental effects of radon ]
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Radon - Data tables and historic information.
Visual Elements: Radon - Animation, uses, physical information, and key isotopes.
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WebElements: Radon - Extensive information on history, uses, occurrence, and properties.
Meta Description: [ This WebElements periodic table page contains key information for the element radon ]
Wikipedia: Radon - Properties of the element, including its history, applications, and characteristics.
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