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
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 ...
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.
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?
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
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 ...
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:.
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
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.
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...