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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

NTA Abhyas 2020 · Chemistry · Classification of Elements and Periodicity in Properties

Among the following, total numbers of radioactive elements are In,...

Among the following, total numbers of radioactive elements are
In, Ac, At, Ba, Tc, Pm, Ta, Xe

Correct answer

4

Step-by-step solution

Ac, At, Tc, Pm are radioactive elements
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