atomic number 86

1. 1.

   a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health

   SynonymsradonRn

   Broaderchemical elementnoble gas

Questions about atomic number 86

What does atomic number 86 mean?

atomic number 86 means "a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health".

What is another word for atomic number 86?

Close synonyms include radon, Rn. 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 86 a common word?

atomic number 86 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.