Atomic rhymes with:
diatomic, monatomic, subatomic, diatomic, monatomic, subatomic, tomich, adamec, adamik, autonomic, comic, diatomic, economic, ergonomic, gastronomic, islamic, macroeconomic, microeconomic, monatomic, noneconomic, romick, socioeconomic, subatomic, technomic, tomich, tragicomic, uneconomic
Atomic sounds like:
adam's, adamcik, adamczak, adamczyk, adamec, adamek, adames, adamik, adamkus, adamowicz, adams, adams', adams's, adamski, addams, adding, additions, admonish, admonishes, adonis, aetna's, aiding, atencio, athanas, athanassiou, athans, athenaios, athenians, athens, atienza, atoms, attaining, attains, attanasio, audience, audience's, audiences, auditing, auditioning, auditions, autonomic, autonomous, autumn's, awaiting