Linked from
The 16 pages that link to Atom, each with the reason it gives.
Chemical elementNarrower topic: Elements are classified by the nuclei of their constituent atoms.
AtomismBroader topic: Modern atomism identifies ordinary matter's chemical building blocks as atoms.
Matter (physics)Broader topic: Atoms are the basic units of ordinary matter in chemistry.
Macroscopic scaleBroader topic: Atoms are among the constituents hidden by a bulk-scale description.