Radon
= Radon
{title2=$\mathrm{Rn}$, $Z=86$}
{wiki}
<Radon> is the <chemical element> with <atomic number> 86 and symbol $\mathrm{Rn}$. It is a <noble gas>. All its <isotopes> are radioactive. Radon-222 is formed in the uranium decay series and can leave the mineral containing its solid parent because it is a gas, linking nuclear decay with transport through pores and buildings.<Periodic Table by Royal Society of Chemistry>[Radon, element data and uses]{ref}