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jee_main_2025_04_april_morning - Classification of Elements and Periodicity in Properties Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #40 Atomic and Ionic Radii
Given below are the pairs of group 13 elements showing their relation in terms of atomic radius: (B < Al), (Al < Ga), (Ga < In) and (In < Tl) Identify the elements present in the incorrect pair and in that pair find out the element (X) that has higher ionic radius (M^3+) than the other one. The atomic number of the element (X) is:
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