atomic number 41 vs Nb

atomic number 41 and Nb both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 41	Yes	No	No	No
Nb	Yes	No	No	No

As nouns, atomic number 41 and Nb are synonyms defined as:

atomic number 41 and Nb: a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium

Other synonyms of atomic number 41 include niobium.

atomic number 41 (noun)	Nb (noun)
a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium	a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium