Is Mercury (ii) Chloride a covalent bond or ionic?
4 answers
There are no "pure" (100%) ionic bonds. The electronegativity of Hg is about 2 and that of Cl is about 3 for a difference of about 1 which makes it about 50% or so ionic/covalent. I think most would classify HgCl2 as ionic since clearly Hg is a metal and chlorine is a non-metal.
ionic
An ionic compound
It is actually covalent due to the properties of mercury.