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Expand? | Letters | Answer | Clue | |||||
99% | 5 | Exact Match! | ||||||
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31% | 5 | Main source of indoor radon exposure | ||||||
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 | ||||||||
31% | 9 | Mineral that is a major source of radon gas | ||||||
noun • a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore | ||||||||
Radon Formerly Crossword Clue
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Source | #Number | Answer |
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New York Times21 May 1987 | Across 60 | |
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Similar Clues
Clue | Source | |
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1 | Former name for radon
New York Times -
18 Jul 1989 | New York Times / 18 Jul 1989 |
2 | Former name of radon
New York Times -
27 Mar 1994 | New York Times / 27 Mar 1994 |
3 | Porous rock, pale blue with iron and a touch of radon
The Guardian Cryptic -
20 May 2005 | The Guardian Cryptic / 20 May 2005 |
4 | Radon is denser than air | |
5 | Radon made newly formed galaxy
The Guardian Quiptic -
01 Sep 2014 | The Guardian Quiptic / 01 Sep 2014 |
6 | Radon or neon
New York Times Bonus -
01 Jul 1999 | New York Times Bonus / 01 Jul 1999 |
7 | The atomic number of the chemical element radon |