Radon, as a strongly radioactive gas, can be a cause of lung cancers. Also it is very widespread in the nature.
The concentration of radon must be determined in houses and other buildings, tunnels, mines, near uranium or thorium open pit mines, etc. and this concentration may be lowered by aeration or other procedures.
Measuring the concentration of radon can be important in geology, seismology and hydrology, vulcanology.
Today radon has only scientific uses.
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There are no elements in Radon, Radon is an element in its own right.
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Radon is NOT reactive.
No. Radon is odorless.
Radon is odorless and poisonous.
Radon is a gas, no ductility.
Radon is a gas, no hardness.
The chemical symbol of radon is Rn.