Search Result：atomic number 86
atomic number 86 
(TTS Sound)
(TTS Sound)Overview of noun atomic_number_86
The noun atomic number 86 has 1 sense
- 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)