element 104 vs atomic number 104

element 104 and atomic number 104 both are nouns.

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

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

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

Other synonyms of element 104 include Rf, rutherfordium, unnilquadium, Unq.

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