Valence bond theory
Valence Bond Theory
Valence Bond Theory (pronunciation: /ˈvāləns bänd ˈTHēərē/) is a fundamental concept in Chemistry that explains the formation of chemical bonds between atoms.
Etymology
The term 'Valence Bond Theory' is derived from the concept of 'valence', which refers to the combining power of an element, and 'bond', which refers to the connection between atoms. The theory was developed in the early 20th century by scientists such as Walter Heitler and Fritz London.
Definition
Valence Bond Theory is a theory that describes the electronic structure of molecules. According to this theory, a covalent bond is formed when two atoms approach each other closely and the singly occupied atomic orbitals overlap, leading to a sharing of electrons. This overlap of atomic orbitals and sharing of electrons results in the formation of a molecule.
Related Terms
- Covalent bond: A type of chemical bond where two atoms share a pair of electrons.
- Atomic orbital: A region in an atom where there is a high probability of finding electrons.
- Molecule: A group of atoms bonded together.
- Chemical bond: A lasting attraction between atoms that enables the formation of chemical compounds.
- Valence: The combining power of an element.
See Also
External links
- Medical encyclopedia article on Valence bond theory
- Wikipedia's article - Valence bond theory
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