atomic number 57 vs La

atomic number 57 and La both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 57	Yes	No	No	No
La	Yes	No	No	No

As nouns, atomic number 57 and La are synonyms defined as:

atomic number 57 and La: a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth

Other synonyms of atomic number 57 include lanthanum.

atomic number 57 (noun)	La (noun)
a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth	a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth