NEET Chemistry · Medium

Classification of Elements and Periodicity in Properties: Ionization enthalpy MCQ

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Ionization enthalpyMediumQuestion 30006

Question

Across a period, first ionization enthalpy generally:

  1. A
    increases
    Correct
  2. B
    decreases
  3. C
    remains constant
  4. D
    becomes negative

Correct answer

increases

Explanation

Smaller size and higher nuclear charge hold electrons more tightly.