noble gas
| 1. |
(noun) any of the chemically inert gaseous elements of the helium group (group 8A or 0 of the periodic table) |
|
Synonyms: argonon, inert gas |
|
Related Words: Ar, He, Kr, Ne, Rn, Xe, argon, atomic number 10, atomic number 18, atomic number 2, atomic number 54, atomic number 86, chemical element, element, gas, helium, krypton, neon, radon, xenon |
|
|