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Inert gas is 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. It also can be called noble gas.
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inert gases are the 18th group elements or VIIIA group elements in the modern periodic table of elements. An inert gas is a gas which does not undergo chemical reactions under a set of given conditions. The noble gases often do not react with many substances.they are also called noble gases, stable gases,zero group elements.
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