Which one of the following is not a natural element of the atmosphere
Answers
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0
Answer:
Explanation:
manganese dioxide is your answer
Answered by
1
Answer:
Radon
Explanation:
Radon is a radioactive element and is not found in the atmosphere. It is found in rocks containing uranium ores and is produced by the radioactive decay of radium.
Actually, Radon is a member of the zero- valence elements that are called a noble gas
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