NEET Chemistry Atomic Radius MCQ Question
Which of the following statements about atomic radius is correct?
Cations are generally smaller than their parent atoms.
Anions are smaller than their parent atoms because they gain electrons.
The atomic radius can be precisely measured using individual atoms.
The covalent radius is determined by half the distance between two bonded atoms.
Correct Answer
Detailed Explanation
Cations are smaller than their parent atoms due to fewer electrons while retaining the same nuclear charge. Anions are larger due to increased electron repulsion. The atomic radius cannot be precisely measured, and the covalent radius is based on bonded atoms, not individual measurements.
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