Chemistry-Atomic Radius

NEET Chemistry Atomic Radius Assertion Reason Question

Type: Assertion Reason-assertion-Medium-Class 11

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.

A

Both (A) and (R) are true and (R) is the correct explanation of (A).

B

Both (A) and (R) are true but (R) is not the correct explanation of (A).

C

(A) is true but (R) is false.

D

(A) is false.

Correct Answer

Option A

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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