Definition

The condition or phenomenon where two or more compounds have the same chemical formula but different structures or properties.

Example

Isomerism is important in chemistry because different isomers can have very different effects in biological systems.

Conversation

Have you ever heard about isomerism in chemistry?

Yeah, it’s fascinating how molecules can have the same formula but different structures.

Exactly! I find it interesting how that affects their properties.

Right? It’s like having twins that look alike but have totally different personalities.

Synonyms & Antonyms

Root Explanation

Isomerism → It is formed from "iso-" (from Greek "isos", meaning equal) and "meros" (from Greek, meaning part). The term refers to the phenomenon where compounds have the same molecular formula but different structural arrangements, hence they are equal in composition but different in structure.

Memory Tip

Think of 'equal parts' ('iso-') that are arranged differently ('meros') — that's what isomerism means.

Visually Confused Words