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This tutorial discusses the concept of hybridization and explains how hybridized orbitals are the building blocks of organic chemistry. Using hybridization, VSEPR, and bonding theory, the tutorial shows how the shapes of molecules can easily be predicted. Valence shell electron pair repulsion (VSEPR) theory (1957) is a model in chemistry, which is used for the representation of shapes of individual molecules, based upon their extent of electron-pair electrostatic repulsion, determined using steric numbers[1]. The theory is also called the Gillespie-Nyholm theory after the two main developers. The premise of VSEPR is that a constructed Lewis structure is expanded to show all lone pairs of electrons alongside protruding and projecting bonds, for predicting the geometric shape and lone-pair behavior of a compound through consideration of the total coordination number. VSEPR theory is based on the idea that the geometry of a molecule or polyatomic ion is determined primarily by repulsion among the pairs of electrons associated with a central atom. The pairs of electrons may be bonding or non-bonding (also called lone pairs). Only valence electrons of the central atom influence the molecular shape in a meaningful way. Please switch on your speakers.

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