Which allotrope of carbon consists of a hollow sphere, ellipsoid, or cylinder of carbon atoms, resembling geodesic domes?

💡 Solution & Explanation

Fullerenes are allotropes of carbon composed entirely of carbon atoms linked in closed cages shaped like spheres, ellipsoids, or cylinders, with Buckminsterfullerene being the most celebrated member containing sixty atoms. Diamond and graphite represent crystalline allotropes with extended network structures, whereas graphene consists of a single planar two-dimensional sheet.