key term - Resonance Structures

Definition

Resonance structures are different Lewis structures that can be drawn for a molecule or ion when the actual electron distribution cannot be accurately represented by a single Lewis structure. They occur when there are multiple valid ways to arrange electrons in a molecule or ion.

Related terms

Delocalization: This term refers to the spreading out of electrons over multiple atoms due to resonance.

Conjugation: It is the presence of alternating single and multiple bonds or lone pairs in a molecule that allows for resonance.

Pi Bond: A covalent bond formed by an overlap of p-orbitals between atoms, often involved in resonance structures.