steel vs atomic number 26

steel and atomic number 26 both are nouns.

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

steel (noun)	atomic number 26 (noun)
knife sharpener consisting of a ridged steel rod	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
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

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