Mercury(I) ion
= Mercury(I) ion
{title2=$\mathrm{Hg_2^{2+}}$}
The paired cation $\mathrm{Hg_2^{2+}}$, containing a mercury–mercury bond and average <oxidation state> +1.
= Mercury(I) ion
{title2=$\mathrm{Hg_2^{2+}}$}
The paired cation $\mathrm{Hg_2^{2+}}$, containing a mercury–mercury bond and average <oxidation state> +1.