"electron pair." YourDictionary, n.d. Web. 05 December 2018. <https://www.yourdictionary.com/electron-pair>.
electron pair. (n.d.). Retrieved December 05th, 2018, from https://www.yourdictionary.com/electron-pair
(plural electron pairs)
(chemistry, physics) Two electrons having opposite spin but all other quantum numbers the same; i.e two electrons in the same atomic orbital or molecular orbital, especially such electrons that function in concert to form a covalent bond
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