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

Assuming that elements are formed to complete the $7^{th}$ period,what would be the atomic number of the alkaline earth metal of the $8^{th}$ period?

  • A
    $113$
  • B
    $120$
  • C
    $119$
  • D
    $106$
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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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