s, which are chemical compounds that share the same molecular formula but have different structural formulae. For example, carbon has 3 common allotropes: diamond, where the carbon atoms are bonded together in a tetrahedral lattice arrangement, graphite, where the carbon atoms are bonded together in sheets of a hexagonal lattice, and fullerenes, where the carbon atoms are bonded together in spherical, tubular, or ellipsoidal formations. Allotropy refers only to different forms of an element with… (More on Allotropy)