Sulfur is known to form several oxides including S 2O, S 6O, S 8O, S 7 O 2, and SO that have no signifi cant
use. The oxides that contain several sulfur atoms generally have rings containing sulfur atoms with an
oxygen atom appended to one of them. There do not appear to be as many oxides of selenium and tellurium, but the dioxides of all the elements have an extensive chemistry associated with them. Table
15.3 shows the properties of the group VIA dioxides.