| 释义 |
rare gas
rare gasn. See noble gas.rare gas n (Elements & Compounds) another name for inert gas1 Translations
rare gas
rare gas: see inert gasinert gas
or noble gas,
any of the elements in Group 18 of the periodic table. In order of increasing atomic number they are: helium, neon, argon, krypton, xenon, and radon. They are colorless, odorless, tasteless gases and were once believed to be entirely inert, i.e.
..... Click the link for more information. .rare gas[′rer ′gas] (chemistry) noble gas MedicalSeeinert gas |