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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
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The atomic radii of transition elements from to are almost equal because
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Correct option: B
Increased effective nuclear charge is balanced by increased screening effect of -orbitals
Option B (Increased effective nuclear charge is balanced by increased screening effect of -orbitals) is correct because the balance between these two effects results in relatively constant atomic radii across the transition series.
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