Home Chemistry D and F - Block Elements General The second and third row elements of transit…
Chemistry D and F - Block Elements General Single Correct MCQ
Published on: August 13, 2026

The second and third row elements of transition metals resemble each other much more than they resemble the first row because of

A
Lanthanoid contraction which results in almost same radii of second and third row metals
B
Diagonal relationship between second and third row elements
C
Similar ionization enthalpy of second and third row elements
D
Similar oxidation states of second and third row metals.

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The correct answer is:
A

Due to lanthanoid contraction, the atomic radii of second and third row transition elements is almost same. Hence, they resemble each other much more as compared to first row elements.

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