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atomic number 86

 
Noun atomic number 86 has 1 sense
  1. radon, Rn, 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
    --1 is a kind of chemical element, element; noble gas, inert gas, argonon
atomic number 78 atomic number 79 atomic number 80 atomic number 81 atomic number 82 atomic number 83 atomic number 84 atomic number 85 atomic number 86 atomic number 87 atomic number 88 atomic number 89 atomic number 90 atomic number 91 atomic number 92 atomic number 93 atomic number 94

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