Which group 16 element forms the most stable dioxide at room temperature?
Group 16 dioxides vary in stability. SO₂ (bent, gaseous) is the most stable at room temperature due to strong S=O bonds, unlike O₂ (diatomic gas), SeO₂ (polymeric solid), or TeO₂ (solid).
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Modern Periodic Law and Present Form - Long Form Periodic Table