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NEETChemistryClassification of Elements and Periodicity in Properties

How would you justify the presence of 18 elements in the 5th period of the Periodic Table?

Options

  1. AThe 5th period corresponds to the filling of the 5s, 4d, and 5p subshells, accommodating a total of 18 electro
  2. BThe 5th period is an exception, and it contains 32 elements.
  3. CThe 5th period includes the lanthanides and actinides series, which contribute to the high number of elements.
  4. DThe 5th period follows the 18-electron rule, allowing for 18 elements.

Correct answer

A. The 5th period corresponds to the filling of the 5s, 4d, and 5p subshells, accommodating a total of 18 electro

Step-by-step solution

Correct Option is : (A) The 5th period corresponds to the filling of the 5s, 4d, and 5p subshells, accommodating a total of 18 electrons.

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