radon
PubChem Notes:
Radon Radon. A naturally radioactive element with atomic symbol Rn, atomic number 86, and atomic weight 222. It is a member of the noble gas family and released during the decay of radium and found in soil. There is a link between exposure to radon and lung cancer.
Rn - definition from Biology-Online.org
[symbol for radon.
MediLexicon niton - Medical Dictionary Definition for Term 'niton'
[1. Archaic term for radon.
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