also a liquid at room temperature. Unlike water, however, the strong intermolecular attractions that cause the higher boiling point are van der Waals interactions, an effect of the large electron clouds of polonium.

Dihydrogen dichalcogenides

Dihydrogen dichalcogenides have the chemical formula H₂X₂, and are generally less stable than the monochalcogenides, commonly decomposing into the monochalcogenide and the chalcogen involved.

The most important

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