Englishfor English speakers
delocalized
adjective
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(chemistry) Describing the π-electrons in a conjugated, aromatic or mesoionic compound that are not associated with any particular atom or bond
valence
Noun
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A valence is something that determines the number of atoms that will bond with another kind of atom.
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A valence is a certain amount of atoms or groups in a basic combination that an atom or group can actually hold.