For questions about the valence shell electron pair repulsion (VSEPR) theory, in topics of: estimation of bond length, bond angle, bond energy, etc.; determining hybridization of atoms, or shape and geometry of molecules; and other related topics.

Valence shell electron pair repulsion (VSEPR) theory provides simple explanations for the general shapes of molecules based on the repulsion of bonding pair and lone pair electron repulsions, and we developed by Sidgwick and Powell and later Gillespie and Nyholm.

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