atomic number 86
Also found in: Thesaurus.
Related to atomic number 86: mass number
ThesaurusAntonymsRelated WordsSynonymsLegend:
Switch to new thesaurus
Noun 1. [画像:atomic number 86 - a radioactive gaseous element formed by the disintegration of radium]atomic number 86 - 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
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.