atomic number 104 vs Rf

atomic number 104 and Rf both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 104	Yes	No	No	No
Rf	Yes	No	No	No

As nouns, atomic number 104 and Rf are synonyms defined as:

atomic number 104 and Rf: a radioactive transuranic element which has been synthesized

Other synonyms of atomic number 104 include element 104, rutherfordium, unnilquadium, Unq.

atomic number 104 (noun)	Rf (noun)
a radioactive transuranic element which has been synthesized	a radioactive transuranic element which has been synthesized