NEET Chemistry Periodic Table MCQ Question
If the atomic number of a halogen is 53, what is the expected trend in its electron gain enthalpy compared to the halogen with atomic number 9?
Less negative
More negative
No change
Positive
Correct Answer
Detailed Explanation
As we move down a group in the periodic table, the electron gain enthalpy becomes less negative due to increased atomic and ionic radii.
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