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Radon - Wikipedia


Radon is a chemical element with symbol Rn and atomic number 86. It is a radioactive, ..... The average concentration of radon in the atmosphere is about 6 ×10<sup>−20</sup> .....

#86 - Radon - Rn


Melting Point, -71.0° C. Boiling Point, -61.8° C. Density, 9.73 grams per cubic centimeter. Normal Phase, Gas. Family, Noble Gases. Period, 6. Cost, $4 per m ...

ELEMENT: RADON - Radiochemistry Society


RADON. to Elements Alphabetical Listing ... On the average, one part of radon is present ot 1 x 1021 part of air. ... Radon is available at a cost of about $4/mCi.

How much does radon gas cost per gram - Answers.com


The most stable isotope of radon has a half-life of about 4 days (contrast this with the first element most people ... How much does aluminum cost per grams?

Pictures, stories, and facts about the element Radon in the Periodic ...


Photographs and descriptions of many samples of the element Radon in the Periodic Table. ... Continuous electronic radon gas monitor that reads out in Pico- curies per liter. ... Price: $120. Size: 5 ... The samples (except gases) weigh about 0.25 grams each, and the whole set comes in a very nice wooden box with a printed ...

It's Elemental - The Element Radon


The Element Radon - Basic Physical and Historical Information. ... Density: 0.00973 grams per cubic centimeter. Phase at Room Temperature: Gas ... On average, the earth's atmosphere is 0.0000000000000000001% radon. When cooled to ...

Facts, pictures, stories about the element Radon in the Periodic Table


Radon at The Wooden Periodic Table Table by Theodore Gray. ... of Chicago, wrote to me with a calculation of how much radon he thinks is in my tube:.

radon facts, information, pictures | Encyclopedia.com articles about ...


Its density is 9.72 grams per liter, making it about seven times as dense as air. It is the densest gas ... They did so by combining a noble gas with a very active element. ... Scientists today think that radon may cause as many as 20,000 cases of lung cancer per year. ... Radon test kits can be purchased easily and at low cost.

What is the current market value of 1 kg of radium Ra-226 ...


Aug 7, 2013 ... Gram for gram it is about 3 illion times more radioactive than uranium. ... It emits Radon an inert gas which is also dangerously radioactive and is difficult to contain. ... Our donation only cost us $82,000 plus shipping costs.

There is no Safe Radon Level in Homes - RadonSeal


The average (mean) radon level in US homes is 1.25 pCi/L, or three times higher ... A Curie is a unit of radioactivity equivalent to 1 gram of radium and the prefix " pico" ... In the metric system, radon concentration is expressed in Becquerels per .... The "action" limit is based on the average cost of a radon mitig...

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Radon - Chemicool


Radon's properties, discovery, videos, images, states, energies, appearance and characteristics. ... Radon. Average radioactivity intensity in the world's atmosphere caused by radon. 86. Rn. (222) ... Cost, pure: $ per 100g. Cost, bulk: $ per ...

How much does the element radium cost per gram? | Reference.com


An average cost of radium does not exist as it does not exist in its pure form. Prices for salts and minerals with traces of radium may be bought at varying. ... Radon is an odorless, colorless and tasteless noble gas that does not react with other ...

Convert volume to weight: Radon - Conversions and Calculations


Convert radon volume to its weight. ... gram, 2.3, pound, 0.01 ... The “Radon” density (ρ) is equal to 9.73 kilogram per cubic meter at 0°C at standard atmospheric ...