Question

Who introduced resonance ?

Answer 1

In chemistry, resonance or mesomerism[1] is a way of describing delocalized electronswithin certain molecules or polyatomic ionswhere the bonding cannot be expressed by one single Lewis structure. A molecule or ion with such delocalized electrons is represented by several contributing structures[2] (also called resonance structures or canonical structures).

Each contributing structure can be represented by a Lewis structure, with only an integer number of covalent bonds between each pair of atoms within the structure.[3]Several Lewis structures are used collectively to describe the actual molecular structure, which is an approximate intermediate between the canonical forms called a resonance hybrid.[4] Contributing structures differ only in the position of electrons, not in the position of nuclei.

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Answer 2

resonance is the way of describing delocalized electrons within certain
molecules . A molecule with such delocalized electrons is represented by several contributing structures ...such as lewis dot structure...