atomic number 24 vs chromium

atomic number 24 and chromium both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 24	Yes	No	No	No
chromium	Yes	No	No	No

As nouns, atomic number 24 and chromium are synonyms defined as:

atomic number 24 and chromium: a hard brittle multivalent metallic element; resistant to corrosion and tarnishing

Other synonyms of atomic number 24 include Cr.

atomic number 24 (noun)	chromium (noun)
a hard brittle multivalent metallic element; resistant to corrosion and tarnishing	a hard brittle multivalent metallic element; resistant to corrosion and tarnishing