nucleonics vs atomic physics

nucleonics and atomic physics both are nouns.

Word	Noun	Adjective	Verb	Adverb
nucleonics	Yes	No	No	No
atomic physics	Yes	No	No	No

As nouns, nucleonics and atomic physics are synonyms defined as:

nucleonics and atomic physics: the branch of physics that studies the internal structure of atomic nuclei

Other synonyms of nucleonics include nuclear physics.

nucleonics (noun)	atomic physics (noun)
the branch of physics that studies the internal structure of atomic nuclei	the branch of physics that studies the internal structure of atomic nuclei