Radon - Law Dictionary Search Results
Home Dictionary Name: radonRadon
An intensely radioactive gaseous element produced by the radioactive decay of radium 226 which is the main isotope of radium found in pitchblende Chemically it is an inert noble gas Its atomic symbol is Rn It has an atomic number of 86 The radon isotope produced by decay of radium has an atomic weight of 222017 and this isotope decays by alpha emission with a half life of 382 days Numerous other isotopes have been observed all radioactive and all having half lives shorter than that of radon 222 Radon was discovered by M and Mme Curie of Paris in their studies of the radioactive substances in pitchblende Radon was originally called radium emanation or exradio...
radon
radon a radioactive gas found in some homes that, if occurring in strong enough concentrations, can cause health problems. Source: U.S. Department of Housing and Urban Development ...
mitigation
mitigation term usually used to refer to various changes or improvements made in a home; for instance, to reduce the average level of radon. Source: U.S. Department of Housing and Urban Development ...
Radium
An intensely radioactive metallic element found combined in minute quantities in pitchblende and various other uranium minerals Symbol Ra atomic weight 2264 Radium was discovered by M and Mme Curie of Paris who in 1902 separated compounds of it by a tedious process from pitchblende Its compounds color flames carmine and give a characteristic spectrum It is divalent resembling barium chemically The main isotope of radium found in pitchblende radium 226 has a half life of 1620 years decaying first by alpha emission to radon...
Rn
the symbol for the chemical element radon...
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