Mercury (element)
= Mercury
{disambiguate=element}
{title2=$\mathrm{Hg}$}
<Mercury (element)> is the <chemical element> with <atomic number> 80 and symbol $\mathrm{Hg}$. It is a <metal>. It is liquid near ordinary room temperature, making it a familiar exception to the usual solid state of metals. Mercury(I) commonly contains the dimeric cation $\mathrm{Hg_2^{2+}}$, while mercury(II) has different chemistry.<Periodic Table by Royal Society of Chemistry>[Mercury, element data and uses]{ref}