What elements combine with mercury to make a compound.

What elements are they and what compound do they make.

All of the Halogens to form Mercury Halides, as in HgCl2 mercuric chloride, also oxygen, to form HgO Mercuric Oxide,
Hg2O2 Mercurous Oxide, Mercurous chloride (Hg2Cl2), Mercuric sulphide (HgS),

(Mercuric oxide (HgO) is used to make mercury batteries).

well elements form amalgamated compds.metals like silver , platinum on adsorption form amalgamated compds.