Atomic Number 86 — synonyms, definition

1. atomic number 86 (Noun)

2 synonyms
Rn radon
1 definition

atomic number 86 (Noun) — 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.

5 types of
argonon chemical element element inert gas noble gas
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