How to pronounce "atomic number 86"

• "atomic number 86" pronounced in English.

Meanings and definitions of "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

Synonyms:

• radon
• Rn
• atomic number 86