Valence bond theory - Wikipedia
In chemistry, valence bond (VB) theory is one of the two basic theories, along with molecular orbital (MO) theory, that were developed to use the methods of quantum mechanics to explain chemical bonding. It focuses on how the atomic orbitals of the dissociated atoms combine to give individual chemical bonds when a molecule is formed.
Valence Bond Theory (VB) - BYJU'S
The Valence Bond Theory was developed in order to explain chemical bonding using the method of quantum mechanics. This theory primarily focuses on the formation of individual bonds from the atomic orbitals of the participating atoms during the formation of a molecule.
Valence Bond Theory - Chemistry LibreTexts
2023年1月30日 · Valence Bond theory describes covalent bond formation as well as the electronic structure of molecules. The theory assumes that electrons occupy atomic orbitals of individual atoms within a molecule, and that the electrons of one atom are attracted to the nucleus of another atom.
12.2: Valence Bond Theory - Chemistry LibreTexts
2023年1月11日 · Valence bond theory describes bonding as a consequence of the overlap of two separate atomic orbitals on different atoms that creates a region with one pair of electrons shared between the two atoms. When the orbitals overlap along an axis containing the nuclei, they form a …
7.4 Valence Bond Theory – Chemistry Fundamentals
One popular theory holds that a covalent bond forms when a pair of electrons is shared by two atoms and is simultaneously attracted by the nuclei of both atoms. In the following sections, we will discuss how such bonds are described by valence bond theory and hybridization.
Overview of Valence Bond Theory - Chemistry LibreTexts
2023年1月30日 · Valence Bond Theory looks at the interaction between orbitals to describe bonds. It can also be used to derive the shape of the molecule in question, as well as determining whether or not an atom/molecule is diamagnetic or paramagnetic; however Valence Bond Theory is not always reliable.
Lecture 14: Valence Bond Theory and Hybridization
Valence bond theory and hybridization can be used to explain and/or predict the geometry of any atom in a molecule. In particular, the concept of hybridization is important for understanding the geometry of organic molecules.
Since its revival in the 1980s, VB theory has been enjoying a renaissance that is characterized by the development of a growing number of ab initio methods that can be applied to chemical problems of bonding and reactivity.
Valence Bond Theory | Chemistry for Majors - Lumen Learning
Valence bond theory describes a covalent bond as the overlap of half-filled atomic orbitals (each containing a single electron) that yield a pair of electrons shared between the two bonded atoms. We say that orbitals on two different atoms overlap when a portion of one orbital and a portion of a second orbital occupy the same region of space.
4.1 Valence Bond Theory - UCalgary Chemistry Textbook
Valence bond theory describes a covalent bond as the overlap of half-filled atomic orbitals, each containing a single electron. This overlap yields a pair of electrons shared between the two bonded atoms.