NEET Chemistry Ionization Energy Assertion Reason Question
Assertion (A): Ionization energy generally increases across a period from left to right. | Reason (R): Effective nuclear charge increases across a period, leading to stronger attraction of the valence electrons.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
As per the NCERT context, ionization energy increases across a period due to the increase in effective nuclear charge, which strengthens the attraction between the nucleus and valence electrons.
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