atomic number 88 vs radium

atomic number 88 and radium both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 88	Yes	No	No	No
radium	Yes	No	No	No

As nouns, atomic number 88 and radium are synonyms defined as:

atomic number 88 and radium: an intensely radioactive metallic element that occurs in minute amounts in uranium ores

Other synonyms of atomic number 88 include Ra.

atomic number 88 (noun)	radium (noun)
an intensely radioactive metallic element that occurs in minute amounts in uranium ores	an intensely radioactive metallic element that occurs in minute amounts in uranium ores