What is another word for noble gas?
Pronunciation: [nˈə͡ʊbə͡l ɡˈas] (IPA) 
Noble gas is a term that refers to a group of chemical elements that are highly stable and non-reactive due to their electron configuration. The seven noble gases are helium, neon, argon, krypton, xenon, radon, and oganesson. Synonyms for the term noble gas include inert gas and rare gas. Inert gas is a reference to their non-reactive nature, while rare gas indicates their scarcity in the Earth's atmosphere. Another synonym for noble gas is group 18 elements, which refers to their placement on the periodic table. Despite their stability, noble gases have a variety of important uses, including in lighting, medical imaging, and as refrigerants.
