radon
/ˈreɪdɒn/
- n.
- 氡
中文释义来自 ECDICT
构词拆解
- radio-
- radiation, radioactive · radio (broadcasting)
- -on
- (physics, mathematics) Forming nouns denoting subatomic particles and quanta.
词源链
- 英语English
radon
词源说明
释义
名词noun
- 1(chemistry) The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.
- 2Radon-222 (22286Rn), the most stable isotope of said element.