Structural Isomerism is a fundamental principle in organic chemistry defining compounds with identical molecular formulas but distinct arrangements of atoms within their covalent skeletons. This concept establishes formal taxonomies regarding connectivity variations, including chain branching, position shifting, and skeletal rearrangements that generate unique structural identities without altering elemental composition or atom count. It serves as the theoretical foundation for distinguishing discrete chemical entities based on atomic bonding patterns rather than molecular weight alone within the broader discipline of chemical structure theory.
Prerequisite chain context: requires IUPAC Names And Structures Of Hydrocarbons An Activity.