Magnesium polonide (MgPo) is a salt of magnesium and polonium. It is a polonide, a set of very chemically stable compounds of polonium.
Magnesium polonide can be produced by heating a mixture of elemental magnesium and polonium at 300âÂÂ400 ðC.
Magnesium polonide has the nickeline (NiAs) structure. It is unusual among polonides in not being isomorphous with the corresponding sulfide, selenide and telluride; only mercury polonide (HgPo) shares this property.