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NEETChemistryClassification of Elements and Periodicity in Properties

What causes the second ionization enthalpy to be higher than the first ionization enthalpy?

Options

  1. AThe increased size of the atom.
  2. BThe addition of more electrons to the atom.
  3. CThe greater difficulty in removing an electron from a positively charged ion.
  4. DThe decrease in nuclear charge.

Correct answer

C. The greater difficulty in removing an electron from a positively charged ion.

Step-by-step solution

The second ionization enthalpy is higher than the first because it is more difficult to remove an electron from a positively charged ion than from a neutral atom.

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