atomic number 85

1. 1.

   a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

   SynonymsastatineAt

   Broaderchemical elementhalogen

Questions about atomic number 85

What does atomic number 85 mean?

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

What is another word for atomic number 85?

Close synonyms include astatine, At. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is atomic number 85 a common word?

atomic number 85 is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.