atomic number 56 vs barium

atomic number 56 and barium both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 56	Yes	No	No	No
barium	Yes	No	No	No

As nouns, atomic number 56 and barium are synonyms defined as:

atomic number 56 and barium: a soft silvery metallic element of the alkali earth group; found in barite

Other synonyms of atomic number 56 include Ba.

atomic number 56 (noun)	barium (noun)
a soft silvery metallic element of the alkali earth group; found in barite	a soft silvery metallic element of the alkali earth group; found in barite