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Question: Answered & Verified by Expert
Among the following, total numbers of radioactive elements are
In, Ac, At, Ba, Tc, Pm, Ta, Xe
ChemistryClassification of Elements and Periodicity in PropertiesJEE Main
Solution:
1389 Upvotes Verified Answer
The correct answer is: 4
Ac, At, Tc, Pm are radioactive elements

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