chemist vs Robert Floyd Curl Jr.

chemist and Robert Floyd Curl Jr. both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemist	Yes	No	No	No
Robert Floyd Curl Jr.	Yes	No	No	No

chemist (noun)	Robert Floyd Curl Jr. (noun)
a scientist who specializes in chemistry	American chemist who with Richard Smalley and Harold Kroto discovered fullerenes and opened a new branch of chemistry (born in 1933)
a health professional trained in the art of preparing and dispensing drugs