Radioactive Gas Crossword Clue

There are 2 exact and 133 possible answers.

We've checked our database and believe the answer is RADON which was last seen in the The Guardian Quick crossword.
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We think the answer to this crossword clue is: RADON

Updated: October 13, 2023

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Expand?		Letters	Answer	Clue
	99%	5		Exact Match!
	noun • 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
	95%	6		Exact Match!
	noun • 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
	28%	5		Heavy, colorless, odorless, radioactive noble gas
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Clue Last Found In...

Source	#Number	Answer
The Guardian Quick31 Aug 2018	Down 20
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4	Radioactive gas, linked to granite The Guardian Quick - 28 Jul 2012	The Guardian Quick / 28 Jul 2012
5	Radioactive substances used in radioactive iodine therapy
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