Consider the following elements.

Group downarrow$\downarrow$	A^prime$A^\prime$	B^prime rightarrow$B^\prime \rightarrow$ Period
	C^prime$C^\prime$	D^prime$D^\prime$

Which of the following is/are true about A^prime$A^\prime$, B^prime$B^\prime$, C^prime$C^\prime$ and D^prime$D^\prime$? A. Order of atomic radii: B^prime < A^prime < D^prime < C^prime$B^\prime < A^\prime < D^\prime < C^\prime$ B. Order of metallic character: B^prime < A^prime < D^prime < C^prime$B^\prime < A^\prime < D^\prime < C^\prime$ C. Size of the element: D^prime < C^prime < B^prime < A^prime$D^\prime < C^\prime < B^\prime < A^\prime$ D. Order of ionic radii: B^prime + < A^prime + < D^prime + < C^prime +$B^{\prime +} < A^{\prime +} < D^{\prime +} < C^{\prime +}$ Choose the correct answer from the options given below:

### Core Logic From the grid layout, A^prime$A^\prime$ and B^prime$B^\prime$ are in the same period (left to right), while C^prime$C^\prime$ and D^prime$D^\prime$ are below them in the next period. In general, moving along a period from left to right, size decreases and metallic character decreases. Moving down a group, size increases and metallic character increases. Atomic Radii / Size: B^prime < A^prime$B^\prime < A^\prime$ (across period) D^prime < C^prime$D^\prime < C^\prime$ (across period) A^prime < C^prime$A^\prime < C^\prime$ and B^prime < D^prime$B^\prime < D^\prime$ (down the group) Combining them: B^prime < A^prime < D^prime < C^prime$B^\prime < A^\prime < D^\prime < C^\prime$. (Statement A is correct, C is incorrect). Metallic Character: B^prime < A^prime$B^\prime < A^\prime$ and D^prime < C^prime$D^\prime < C^\prime$ Overall trend follows size closely for these blocks: B^prime < A^prime < D^prime < C^prime$B^\prime < A^\prime < D^\prime < C^\prime$. (Statement B is correct). Ionic Radii (+$+$ ions): Follows the same basic trend as atomic radii: B^prime + < A^prime + < D^prime + < C^prime +$B^{\prime +} < A^{\prime +} < D^{\prime +} < C^{\prime +}$. (Statement D is correct). ### Step 1: Final Selection Statements A, B, and D are correct. Statement C contradicts A, so it is incorrect. Option 2 is the right choice. ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Chemistry: Classification of Elements and Periodicity in Properties