atomic number 73 vs tantalum

atomic number 73 and tantalum both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 73	Yes	No	No	No
tantalum	Yes	No	No	No

As nouns, atomic number 73 and tantalum are synonyms defined as:

atomic number 73 and tantalum: a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite

Other synonyms of atomic number 73 include Ta.

atomic number 73 (noun)	tantalum (noun)
a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite	a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite