NEET Chemistry Atomic Radius Assertion Reason Question
Assertion (A): The atomic radius of an anion is larger than its parent atom.
Reason (R): Anions have more electrons, leading to increased electron-electron repulsion and decreased effective nuclear charge.
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.
Correct Answer
Detailed Explanation
The NCERT context explains that anions are larger than their parent atoms due to increased repulsion among added electrons and decreased effective nuclear charge.
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