Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?

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(N/A) Calcium $(Ca)$ and strontium $(Sr)$ are expected to show chemical reactions similar to magnesium $(Mg)$.
This is because the number of valence electrons $(2)$ is the same in all these three elements.
Since chemical properties of elements are determined by their valence electrons,elements with the same number of valence electrons exhibit similar chemical reactions.

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