Ce vs atomic number 58

Ce and atomic number 58 both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ce	Yes	No	No	No
atomic number 58	Yes	No	No	No

As nouns, Ce and atomic number 58 are synonyms defined as:

Ce and atomic number 58: a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group

Other synonyms of Ce include cerium.

Ce (noun)	atomic number 58 (noun)
a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group	a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group