+A **functional group** is a specific cluster of atoms within a [Molecule](/wiki/molecule) that consistently dictates its characteristic [Chemical Reaction](/wiki/chemical_reaction) and physical properties. These groups are fundamental to understanding the behavior of organic compounds.
+## See also
+- [Organic Chemistry](/wiki/organic_chemistry)
+- [Chemical Bond](/wiki/chemical_bond)
+- [Compound](/wiki/compound)
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