Which noble gas is radioactive and is produced as a decay product of uranium and thorium?
- Argon
- Krypton
-
Radon
- Neon
The correct answer is: C
Explanation
Radon is a radioactive noble gas and is produced as a decay product of uranium and thorium in the Earth's crust. It is colorless, odorless, and tasteless, making it potentially hazardous when it accumulates in enclosed spaces.
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