MHT CET 2023 Chemistry question

Chemistry Classification of Elements and Periodicity in Properties MHT CET 2023

Which element from following exhibits diagonal relationship with Mg?

(A)Be
(B)LiCorrect
(C)Na
(D)B

Answer: (B)

Solution

A diagonal relationship exists between an element and the one diagonally below and to the right of it in the next period (Li-Mg, Be-Al, B-Si), because they have similar charge/size ratio (ionic potential) and electronegativity. Lithium (period 2, group 1) is diagonal to magnesium

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Question ID VK-097440