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NTA Abhyas NEET2020ChemistryClassification of Elements and Periodicity in PropertiesPractice

In a period, atom with smallest radius generally is:

Options

  1. AChalcogen
  2. BHalogen
  3. CAerogen
  4. DPnicogen

Correct answer

B. Halogen

Step-by-step solution

In a period on moving left to right Z effective increases, so atomic size decreases. For inert gases, Van der waal radius is considered, so it is bigger in size as compared to halogens.

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