atomic number 13 vs aluminium

atomic number 13 and aluminium both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 13	Yes	No	No	No
aluminium	Yes	No	No	No

As nouns, atomic number 13 and aluminium are synonyms defined as:

atomic number 13 and aluminium: a silvery ductile metallic element found primarily in bauxite

Other synonyms of atomic number 13 include Al, aluminum.

atomic number 13 (noun)	aluminium (noun)
a silvery ductile metallic element found primarily in bauxite	a silvery ductile metallic element found primarily in bauxite