Question

How do resonance structure and isomers differ?

Answer 1

Hint: In order to answer this question we should know about the resonance structure and isomers. The difference in the location of electrons happens in the resonance while the difference in the location of atoms in the isomers.

Complete answer:
The difference between Resonance structure and isomers are as follows:

Resonance Structure	Isomers
Resonance structures are those in which more than one Lewis dot structure can be drawn.In resonance, the resonance structures are of the same compound.The resonance structures tell us about the delocalization of electrons present in the polyatomic ion or a molecule.Example: There are two resonance contributors in acetone.	Isomers are those chemical compounds that have the same chemical formula but different in properties. As there are arrangements of atoms, the isomers are different compounds.Isomers have a different arrangement of atoms in the molecule.Example: Dimethyl ether and ethanol are isomers.

Addition information:
Resonance structures are very useful when a structure of a single molecule is unable to describe the bonding which is occurring between neighboring atoms. Whereas Isomers are useful as the two isomers have an identical chemical formula but their chemical properties and structures are not the same. The structure of the molecule contributes to its properties.

Note:
The resonance structure can form when there are two or more than two ways by which we can draw a Lewis dot diagram that satisfies the octet rule. Thus those Lewis structures which are equivalent are termed resonance structures.