Definitionn. a radioactive gaseous element formed by the disintegration of radium
Last update: October 22, 2015
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Radon is a radioactive gas. . [Please select]
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Radon is a radioactive gas. [Please select]
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A small group of us dined off tinned chicken, stewed fruit, and radon cheese round the smoky stove, where two screens manufactured from packing cases gave some protection against the draughts which swept like young tornadoes down the tent. [Please select]
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