1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: Electron gain enthalpy becomes less negative as we go down a group. Reason: Size of the atom increases on going down the group and the added electron would be farther from the nucleus.

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Q. Assertion : Electron gain enthalpy becomes less negative as we go down a group.
Reason : Size of the atom increases on going down the group and the added electron would be farther from the nucleus.

Classification of Elements and Periodicity in Properties

Solution:

Correct answer is (b) Assertion and reason both are correct statements and reason is correct explanation of assertion.