「atomic number 86」の発音の仕方

• 「atomic number 86」は％sで発音されます。

「atomic number 86」の意味と定義

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

同義語:

• radon
• Rn
• atomic number 86