Naphthalene 3D Molecular Model — CAS 91-20-3

Naphthalene (C10H8, CAS 91-20-3) — a free educational 3D molecular model for teachers and students, by MolGod.org. Instead of colour coding, every sphere carries its engraved element symbol. At its heart, Naphthalene is built around two 6-membered rings, fused along a shared edge, both aromatic. The model shows 19 bonds: 8 single and 11 aromatic, drawn in Kekulé form. Hand the model round and let students tally the engraved atoms: 10 C + 8 H, 18 in total. Lesson link: aromaticity and delocalise…

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