Isomerism

/aɪˈsɑːmərɪzəm/

noun

The condition of having a similar structure but different arrangement of atoms, typical in chemistry.

Isomerism gives rise to differences in the physical and chemical properties of compounds.

Academic

Definition 1 of 1

Pro Tip 1/3

Isomerism is primarily used in chemical contexts to discuss molecules with the same formula but different structures.

The study of isomerism can reveal why two substances with identical molecular formulas have distinct smells.

Pro Tip 2/3

Even though isomers have the same atoms, their arrangement can give them quite different properties.

Due to isomerism, butane and isobutane have different boiling points.

Pro Tip 3/3

Remember that isomerism has types - structural isomerism involves different connections, stereoisomerism involves different 3D arrangements.

Structural isomerism is a simpler concept than stereoisomerism, which includes enantiomers.

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