Krypton
= Krypton
{title2=Kr}
{wiki}
<Krypton> is the <chemical element> with <atomic number> 36 and symbol $\mathrm{Kr}$. It is a <noble gas>. It is a monatomic gas under ordinary conditions and occurs as a minor component of air. Electrical excitation produces characteristic emission lines, connecting its atomic levels with lighting and spectroscopy.<Periodic Table by Royal Society of Chemistry>[Krypton, element data and uses]{ref}