Home Chemistry D and F - Block Elements MHT CET Previous Year Question Which of the following statements is incorre…
Chemistry D and F - Block Elements MHT CET Previous Year Question Single Correct MCQ
Published on: August 13, 2026

Which of the following statements is incorrect for pair of elements ?

A
Both possess same number of valence electrons.
B
Both have identical atomic sizes.
C
Both have almost identical ionic radii.
D
Both of these belong to same period of periodic table.

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The correct answer is:
D

: and Hf belong to same group. Both have identical atomic and ionic radii due to lanthanold contraction. is present in 5 th period whereas is present in 6th period.

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