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Noble Gases The noble gases are inert (unreactive) as a result of their full outer electronic shell. Their uses are limited. Helium is used to fill airships and balloons. Neon is used in lighting tubes (producing a red-orange glow), Argon is used in electric light globes, krypton is used in small lamps and xenon in flash bulbs. Radon has limited use due to its intense readioactivity. | |
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