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Chemistry LibreTexts

Group 18: The Noble Gases

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  • The noble gases (Group 18) are located in the far right of the periodic table and were previously referred to as the "inert gases" due to the fact that their filled valence shells (octets) make them extremely nonreactive. The noble gases were characterized relatively late compared to other element groups.

    Thumbnail: Vial of glowing ultrapure neon. (CC SA; Jurii via

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