Definition of "orbitals" []

• Plural form of orbital. (noun)

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• "When these are all in roughly the same plane, the orbitals from the double-bonds can mix together."
• "Substances are made of atoms, of course, and because of the laws of quantum mechanics the electrons in atoms have very specific energy levels -- what a chemist calls "orbitals", from the old idea that that's where the electrons "orbit.""
• "The more there are, the closer in energy the resulting molecular orbitals are."