atomic number 43 vs technetium

atomic number 43 and technetium both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 43	Yes	No	No	No
technetium	Yes	No	No	No

As nouns, atomic number 43 and technetium are synonyms defined as:

atomic number 43 and technetium: a crystalline metallic element not found in nature; occurs as one of the fission products of uranium

Other synonyms of atomic number 43 include Tc.

atomic number 43 (noun)	technetium (noun)
a crystalline metallic element not found in nature; occurs as one of the fission products of uranium	a crystalline metallic element not found in nature; occurs as one of the fission products of uranium