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Learn how to use the VSEPR model to predict the shapes of molecules and polyatomic ions with nonmetal or metal central atoms. Find out how to identify the electron groups, assign an AX m E n designation, and describe the molecular geometry and bond angles.
- 5.2: Molecular Shape
Two regions of electron density around a central atom in a...
- 5.2: Molecular Shape
Learn how to predict the structures of small molecules using VSEPR theory, which considers the number and arrangement of electron pairs around a central atom. See examples of different electron-pair geometries and molecular structures, and how lone pairs affect bond angles.
Valence shell electron pair repulsion (VSEPR) theory (/ ˈvɛspər, vəˈsɛpər / VESP-ər, [ 1 ]: 410və-SEP-ər[ 2 ]) is a model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms. [ 3 ] .
Learn what bent molecular geometry is, how to calculate its angle and hybridisation, and see examples of molecules with bent shape. Bent molecular geometry is a V-shaped arrangement of atoms with two lone pairs and two bond pairs.
Learn how to identify the molecular geometry and bond angles of a molecule using the VSEPR model. Find out the types of configurations, bond angles, and examples of bent, linear, trigonal, and tetrahedral geometries.
Molecular geometry is the three-dimensional arrangement of the atoms that constitute a molecule. It includes the general shape of the molecule as well as bond lengths, bond angles, torsional angles and any other geometrical parameters that determine the position of each atom.
Learn how to use VSEPR theory to determine the electron-pair geometry and the molecular geometry of molecules. See examples, interactive models, and practice problems with dash and wedge notation.
