Give reasons Dioxygen is a gas while Sulphur is a solid at room temperature.

Dioxygen is a gas at room temperature. It forms a diatomic molecule O₂ due to its ability to form a stable pπ−pπ multiple bond. Sulphur is a solid at room temperature. It forms staggered 8-atom rings or zig-zag chains due to its inability to form a stable pπ−pπ multiple bond because of its large atomic size.