Chemistry and Physics. An isotope of the radioactive gas radon, of mass number 219, occurring in the actinium decay series.
| 单词 | θ69162 |
| 释义 | the world > matter > chemistry > elements and compounds > metals > noble gases > radon > [noun] > specific isotope of (1) actinon1920 Chemistry and Physics. An isotope of the radioactive gas radon, of mass number 219, occurring in the actinium decay series. |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。