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

What is the trend in electron gain enthalpy as you move down Group 17 (halogens)?

Options

  1. AIncreases
  2. BDecreases
  3. CRemains constant
  4. DVaries unpredictably

Correct answer

B. Decreases

Step-by-step solution

Electron gain enthalpy becomes less negative as you move down Group 17 (halogens).**

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