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#noble #gas #inert #group 18 #element

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#noble gas #element #chemical element #xe #atomic number 54 #gas #inert gas #group 18 #periodic table

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#argon #light bulb #welding #shielding gas #inert gas uses #group 18

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#argon #noble gas #inert gas #atomic number 18 #element 18 #group 18

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#inert #unreactive #stable #gas #element #group 18