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radon

C2 noun

radon /ˈɹeɪdɒn/ nghĩa là rađơn

Các nghĩa

  1. rađơn

    The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.

    uncountable

    How much radon is there?

    Several measurements show high radon levels in this area.

    Helium, neon, argon, krypton, xenon and radon are noble gases.

  2. rađơn-222

    Radon-222 (22286Rn), the most stable isotope of said element.

    uncountable