atomic number 92 vs pitchblende

atomic number 92 and pitchblende both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 92	Yes	No	No	No
pitchblende	Yes	No	No	No

atomic number 92 (noun)	pitchblende (noun)
a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons	a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore