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  • All of the following noble gases are present in the atmos...
Multiple choice

All of the following noble gases are present in the atmosphere, except

  1. Argon

  2. Helium

  3. Radon

  4. Xenon

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Radon is a radioactive noble gas that is not typically found in the atmosphere in significant quantities because it has a short half-life and decays quickly.

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  • Chemistry of Gases and Applications (1190 questions)
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