atom vs chemistry

atom and chemistry both are nouns.

Word	Noun	Adjective	Verb	Adverb
atom	Yes	No	No	No
chemistry	Yes	No	No	No

atom (noun)	chemistry (noun)
(physics and chemistry) the smallest component of an element having the chemical properties of the element	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
(nontechnical usage) a tiny piece of anything	the way two individuals relate to each other
	the chemical composition and properties of a substance or object