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AP EAMCET2013ChemistryClassification of Elements and Periodicity in Properties

The number of elements present in the fourth period is

Options

  1. A32
  2. B8
  3. C18
  4. D2

Correct answer

C. 18

Step-by-step solution

For 4th period, n=4 . Orbitals being filled =4 s, 3 d, 4 p Number of elements in the period =2,10,6=18

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