. . . . "0"^^ . . . . . . "any of the chemically inert gaseous elements of the helium group in the periodic table"@en-us . . "noble gas"^^ . . . . . "14624369-n"^^ . . . . "113787280"@en-us . . . "114624369"^^ . "110475185"@en-us . "0"^^ . "noble gas"@en-us . "inert gas"@en-us . . . . . "argonon"@en-us . .