Which form of elemental sulfur is the most stable at room temperature?

Question

Quizplus · Accepted Answer

Rhombic sulfur is the most stable form of elemental sulfur at room temperature. It exists in a needle-like crystal structure and has a melting point of 112.8 °C. Monoclinic sulfur is a metastable form that can be converted into rhombic sulfur by heating. Hexagonal, triclinic, and tetraclinic forms of sulfur are less stable and are typically formed at higher temperatures or pressures.

Which Form of Elemental Sulfur Is the Most Stable at Room