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Radon is a radioactive, colorless, odorless, tasteless noble gas, occurring naturally as the decay product of uranium or thorium. Its most stable isotope, 222Rn, has a half-life of 3.8 days. Radon is one of the densest substances that remains a gas under normal conditions. It is also the only gas that is radioactive under normal …
A radioactive gas that emanates from rocks and soils and tends to concentrate in enclosed spaces such as basements and first floors of residential homes, the World Health Organization International Radon Project recently issued new findings on the scope and impact of radon on human health. Radon is a radioactive gas that emanates from rocks …