nuclear power vs atomic power

nuclear power and atomic power both are nouns.

Word	Noun	Adjective	Verb	Adverb
nuclear power	Yes	No	No	No
atomic power	Yes	No	No	No

As nouns, nuclear power and atomic power are synonyms defined as:

nuclear power and atomic power: nuclear energy regarded as a source of electricity for the power grid (for civilian use)

nuclear power (noun)	atomic power (noun)
nuclear energy regarded as a source of electricity for the power grid (for civilian use)	nuclear energy regarded as a source of electricity for the power grid (for civilian use)