Polonium: reactions of elements

Reaction of polonium with air

Polonium burns in air to form the solid dioxide polonium(IV) oxide, PoO2.

Po(s) + 2O2(g) → PO2(s)

Reaction of polonium with water

Reaction of polonium with the halogens

Polonium reacts under controlled conditions with the halogens chlorine, Cl2, bromine, Br2, and iodine, I2, to form the respective tetrahalides polonium(IV) chlrode, polonium(IV) bromide, and polonium(IV) iodide.

Po(s) + 2Cl2(g) → PoCl4(s) [yellow]

Po(s) + 2Br2(g) → PoBr4(s) [red]

Po(s) + 2I2(g) → PoI4(s) [black]

Reaction of polonium with acids

Polonium dissolves in concentrated hydrochloric acid, HCl, sulphuric acid, H2SO4, or concentrated nitric acid, HNO3, initially to form solutions containing Po(II).

Reaction of polonium with bases

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