noble gases


no·ble gas·es

elements in the zero group in the periodic series: helium, neon, argon, krypton, xenon, and radon. Synonym(s): inert gases, neutral elements

no·ble gas·es

(nō'bĕl gas'ĕz) Elements in the zero group in the periodic series: helium, neon, argon, krypton, xenon, and radon.
Synonym(s): inert gases.