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NEETChemistryClassification of Elements and Periodicity in Properties

Why do elements in the same group have similar physical and chemical properties?

Options

  1. ABecause they have the same number of protons.
  2. BBecause they have the same atomic mass.
  3. CBecause they have the same number of neutrons.
  4. DBecause they have the same number of valence electrons.

Correct answer

D. Because they have the same number of valence electrons.

Step-by-step solution

Correct Option is : (D) Because they have the same number of valence electrons.

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