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Noble Gases

A group of chemical elements that occur as gases under standard conditions.The six noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive element radon (Rn). These six elements are found in the last column of the Periodic Table. Noble gases are very stable and therefore they have very low chemical reactivity. 

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