radon

名词 n.
中文释义
发音 rā'dŏn

英文释义

名词 n.
  1. The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas. uncountable
  2. Radon-222 (22286Rn), the most stable isotope of said element. uncountable

词汇关系

衍生词
eka-radon nonradon radonate radon difluoride radon fluoride radonproof radon seed
相关词
radium actinon radium emanation

词源

Contraction of radium emanation, since the element appears in the radioactive decay of radium. By surface analysis, radio- + -on (“suffix for noble gases”).
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