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NEETChemistryClassification of Elements and Periodicity in Properties

The radius of Na + cation is less than that of Na atom. Give a reason.

Options

  1. AThe removal of an electron reduces electron-electron repulsions, leading to a smaller cation.
  2. BThe addition of an electron increases electron-electron repulsions, causing a larger cation.
  3. CThe cation loses an electron, reducing the nuclear charge, resulting in a smaller size.
  4. DThe cation gains an electron, increasing the nuclear charge, causing a larger size.

Correct answer

A. The removal of an electron reduces electron-electron repulsions, leading to a smaller cation.

Step-by-step solution

Correct Option is : (A) The removal of an electron reduces electron-electron repulsions, leading to a smaller cation.

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