The resemblance of lithium to magnesium is called the relationship that is:
ADiagonal
BVertical
CHorizontal
DCircular
Answer & Solution
Correct answer: A. Diagonal
1. The two elements sit one step right and one step down.
2. That placement gives the relationship its name.
3. It is the diagonal relationship.
_Source: NCERT Class 11 Chemistry Part II, Unit 10, The s-Block Elements._
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