atomic number 109 vs element 109

atomic number 109 and element 109 both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 109	Yes	No	No	No
element 109	Yes	No	No	No

As nouns, atomic number 109 and element 109 are synonyms defined as:

atomic number 109 and element 109: a radioactive transuranic element, with atomic number 109

Other synonyms of atomic number 109 include meitnerium, Mt.

atomic number 109 (noun)	element 109 (noun)
a radioactive transuranic element, with atomic number 109	a radioactive transuranic element, with atomic number 109