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What does the VSEPR theory describe?
VSEPR Theory Definition: Valence Shell Electron Pair Repulsion (VSEPR) theory is a phenomenon used in chemistry to predict the shapes of the individual molecules based on the repulsion acting between the electrons pairs in a molecule. The other name if VSPER theory is Gillespie- Nyholm theory, named after its two main developers.
What is determined by VSEPR theory?
VSEPR theory is used to predict the arrangement of electron pairs around non-hydrogen atoms in molecules , especially simple and symmetric molecules, where these key, central atoms participate in bonding to two or more other atoms; the geometry of these key atoms and their non-bonding electron pairs in turn determine the geometry of the larger whole
What is the full form of VSEPR in chemistry?
Valence shell electron pair repulsion theory, or VSEPR theory ( / ˈvɛspər, vəˈsɛpər / VESP-ər, və-SEP-ər ), is a model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms.
What does the VSEPR theory explain molecular shape?
VSEPR Theory is used to predict the shape of the molecules from the electron pairs that surround the central atoms of the molecule. The theory was first presented by Sidgwick and Powell in 1940. VSEPR theory is based on the assumption that the molecule will take a shape such that electronic repulsion in the valence shell of that atom is minimized.
What does the VSEPR theory tell about a molecule?
The VSEPR theory explains the spatial arrangement of atoms in a molecule. This theory uses the repulsions between lone electron pairs and bond electron pairs in order to predict the shape of a certain molecule. The valence bond theory explains the chemical bonding between atoms.
How is the VSEPR theory used to classify molecules?
1 Answer. Answer: Valence shell electron pair repulsion theory (vesper for short) classifies molecules on the basis of the number of electron pairs, bonding and lone pairs, associated with the central atom. Explanation: It is a fact that electron pairs arranged around a central atom repel each other (hence vesper).