JEE Main 2024 Chemistry question
Consider the following elements arranged in the periodic table with the group going down and the period across: A′ B′ in the first row and C′ D′ in the row below. Which of the following is/are true about A′, B′, C′ and D′? A. Order of atomic radii: B′ < A′ < D′ < C′ B. Order of metallic character: B′ < A′ < D′ < C′ C. Size of the element: D′ < C′ < B′ < A′ D. Order of ionic radii: B′⁺ < A′⁺ < D′⁺ < C′⁺ Choose the correct answer from the option given below:
Answer: (D)
Solution
Atomic size increases down a group and decreases across a period, so the size order is B′ < A′ < D′ < C′ (A correct, and C
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