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NEETChemistryp Block Elements (Group 15, 16, 17 & 18)

What is the main reason for the small atomic radii of halogens in their respective periods?

Options

  1. AHigh electron gain enthalpy
  2. BMaximum number of quantum shells
  3. CMaximum effective nuclear charge
  4. DLow ionisation enthalpy

Correct answer

C. Maximum effective nuclear charge

Step-by-step solution

The small atomic radii of halogens in their respective periods are primarily due to the maximum effective nuclear charge they experience.

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