Magnesium polonide
Magnesium polonide is a salt of magnesium and polonium. It is a polonide, a set of very chemically stable compounds of polonium.Preparation
Magnesium polonide may be produced by heating elemental magnesium and polonium together at 300–400 °C.Structure
Magnesium polonide has the nickeline structure with lattice parameters a = 434.5 pm and c = 707.7 pm. It is unusual among polonides in not being isomorphous with the corresponding sulfide, selenide and telluride; only mercury polonide shares this property.
