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Class 11ChemistryClassification of Elements and Periodicity in PropertiesExtended or long form of periodic table
Easy

Which period contains most of the man-made radioactive elements?

  • A
    Period $5$
  • B
    Period $6$
  • C
    Period $7$
  • D
    Period $4$
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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Extended or long form of periodic table

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