atomic number 27 vs cobalt

atomic number 27 and cobalt both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 27	Yes	No	No	No
cobalt	Yes	No	No	No

As nouns, atomic number 27 and cobalt are synonyms defined as:

atomic number 27 and cobalt: a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition

Other synonyms of atomic number 27 include Co.

atomic number 27 (noun)	cobalt (noun)
a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition	a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition