uranyl

The divalent ion UO₂²⁺.

Uranium dioxid, UO₂, when it occurs as a dyad radical in combination: as, for example, potassium and uranyl sulphate, K₂.UO₂.(SO₄)₂.-(H₂O)₂, the salt with which Becquerel’s first experiment in regard to radioactivity was made.

The radical UO2, conveniently regarded as a residue of many uranium compounds.

The divalent radical UO22+, conveniently regarded as a residue of many uranium compounds.

the bivalent radical UO2 which forms salts with acids