atomic number 43 vs Tc

atomic number 43 and Tc both are nouns.

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

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

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

Other synonyms of atomic number 43 include technetium.

atomic number 43 (noun)	Tc (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