NEET Chemistry Atomic Radius Assertion Reason Question
Assertion (A): The atomic radius of a cation is smaller than its parent atom.
Reason (R): The removal of an electron from an atom increases the effective nuclear charge experienced by the remaining electrons.
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 assertion and reason are both true as the removal of an electron causes a decrease in electron repulsion, increasing the effective nuclear charge per electron, thereby reducing the atomic radius.
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