atomic number 26 vs steel

atomic number 26 and steel both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 26	Yes	No	No	No
steel	Yes	No	Yes	No

atomic number 26 (noun)	steel (noun)
a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood	knife sharpener consisting of a ridged steel rod
	a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard
	an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range

atomic number 26 (verb)	steel (verb)
	cover, plate, or edge with steel
	get ready for something difficult or unpleasant