Question

The diagonal relationship is shown by the elements

• A. $\mathrm{Be}\mathrm{and}\mathrm{Mg}$
• B. $\mathrm{Li}\mathrm{and}\mathrm{Mg}$
• C. $\mathrm{Li}\mathrm{and}\mathrm{Na}$
• D. $\mathrm{Be}\mathrm{and}\mathrm{Ba}$

Answer 1

The correct option is B

$\mathrm{Li}\mathrm{and}\mathrm{Mg}$

Diagonal relationship:

• In S block elements, there is a diagonal link between neighboring elements that are situated in the second and third periods of the periodic table.
• When compared to the other elements in the subgroup to which they belong, S block elements' attributes differ dramatically.

Explanation of the correct answer:

The correct answer is option B:

• There are several commonalities between the diagonal neighbors.
• Moving from left to right and down the group reveals this connection; the periodic table includes opposing elements.
• The varied ways that certain atomic characteristics fluctuate along groups and across periods of the Periodic Table result in diagonal connections.
• The s and p-block components additionally show diagonal relationships in addition to group and period ties.
• Thus, $\mathrm{Li}\mathrm{and}\mathrm{Mg}$ show diagonal relationship.

Explanation of the incorrect answers:

Options A, C, and D:

1. Only the second-period metals and groups 1, 2, and 13 exhibits a diagonal connection.
2. Thus, $\mathrm{Be}\mathrm{and}\mathrm{Mg}$, $\mathrm{Li}\mathrm{and}\mathrm{Na}$, and $\mathrm{Be}\mathrm{and}\mathrm{Ba}$ do not show diagonal relationships.

Hence, option B is correct, i.e., $\mathrm{Li}\mathrm{and}\mathrm{Mg}$.