Which of the following is/are true about A',B',C'andD' ? 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 options given below:
Statement A: Order of atomic radii \(B' < A' < D' < C'\). The atomic radii decrease from left to right in a period and increase from top to bottom in a group. This order is correct.
Statement B: Order of metallic character \(B' < A' < D' < C'\). Metallic character decreases from left to right in a period and increases from top to bottom in a group. This order aligns with the general trend, so this statement is correct.
Statement C: Size of the element \(D' < C' < B' < A'\). This statement would be correct if we consider ionic sizes and periodic trends, but based on the provided context, this order does not match general atomic radius trends. This statement is incorrect.
Statement D: Order of ionic radii \(B^+ < A^{++} < D^{++} < C^{++}\). Ionic radii depend on the effective nuclear charge and the number of electrons lost. This order is correct based on typical ionic sizes across groups and periods. Thus, the correct answer is: A, B, and D only.
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