atomic number 54 vs argonon

atomic number 54 and argonon both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 54	Yes	No	No	No
argonon	Yes	No	No	No

As nouns, argonon is a hypernym of atomic number 54; that is, argonon is a word with a broader meaning than atomic number 54:

atomic number 54: a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts
argonon: any of the chemically inert gaseous elements of the helium group in the periodic table

Other hypernyms of atomic number 54 include inert gas, noble gas.

atomic number 54 (noun)	argonon (noun)
a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts	any of the chemically inert gaseous elements of the helium group in the periodic table