. . "0.0"^^ . "0.575426"^^ . . . "0"^^ . "114652104"^^ . "110498886"@en-us . . "Rn"@en-us . "0.0"^^ . . . . . . "NAN"^^ . . "0.0"^^ . "14652104-n"^^ . "a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health"@en-us . . . "radon"@en-us . "0.0"^^ . . . . "0.327537"^^ . . . . "atomic number 86"@en-us . . . . . "0.0970372"^^ . . "0"^^ . "radon"^^ . "a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health"@en-us . . . "113813396"@en-us .