At vs atomic number 85

At and atomic number 85 both are nouns.

Word	Noun	Adjective	Verb	Adverb
At	Yes	No	No	No
atomic number 85	Yes	No	No	No

As nouns, At and atomic number 85 are synonyms defined as:

At and atomic number 85: a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

Other synonyms of At include astatine.

At (noun)	atomic number 85 (noun)
a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium	a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium