Valence Bond Theory Definition

Definition: Valence bond theory is a chemical bonding theory that explains the bonding between two atoms is caused by the overlap of half-filled atomic orbitals. The two atoms share each other's unpaired electron to form a filled orbital to form a hybrid orbital and bond together.

Examples: Sigma and pi bonds are part of valence bond theory.

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Helmenstine, Anne Marie, Ph.D. "Valence Bond Theory Definition." ThoughtCo, Nov. 27, 2014, thoughtco.com/definition-of-valence-bond-theory-605771. Helmenstine, Anne Marie, Ph.D. (2014, November 27). Valence Bond Theory Definition. Retrieved from https://www.thoughtco.com/definition-of-valence-bond-theory-605771 Helmenstine, Anne Marie, Ph.D. "Valence Bond Theory Definition." ThoughtCo. https://www.thoughtco.com/definition-of-valence-bond-theory-605771 (accessed May 25, 2018).