Yahoo Web Search

- All
- Images
- Videos
- News
- Anytime
- Past day
- Past week
- Past month
Anytime

Search results

Dictionary
no·ble gas

/ˌnōb(ə)l ˈɡas/

noun
- 1. any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table. They were long believed to be totally unreactive but compounds of xenon, krypton, and radon are now known.
Powered by Oxford Dictionaries

Noble gas
Group of chemical elements in column 18 of the periodic table, that tend to be chemically inert and thus form odorless, colorless, monatomic gases with low reactivity; consists of helium, neon, argon, krypton, xenon, radon, and possibly oganesson
|- ! colspan=2 style="text-align:left;" | ↓ Period |- ! 1 Wikipedia
- Wiki
Feedback