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The Group VIII elements are all liquids.
Noble gases are called noble because they are colorful.
Noble gases exist in nature as diatomic molecules.
Noble gases have a complete outer electron shell of twon or eight electrons.
Noble gases are highly reactive and readily form chemical bonds with other elements.
Helium is used for filling balloons because it is less dense than air and does not burn.
Neon, argon, and xenon are used in breathing apparatus for deep-sea divers.
Argon is used in providing an inert atmosphere in welding.
Krypton is used in lamps for lighthouses and hospital operating theaters.
Neon, argon, and xenon are used in advertising signs.