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BookmarkRadon 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..
For more information about the topic Radon, read the full article at Wikipedia.org, or see the following related articles:
Noble gas — The noble gases are the chemical elements in group 18 of the periodic table. They are the most stable due to having the maximum number of valence ... > read more
Neon — Neon is the chemical element in the periodic table that has the symbol Ne and atomic number 10. A colorless, nearly inert noble gas, neon gives a ... > read more
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