Which one of the following combinations repre | vedclass

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(D) The electronic configuration $2, 8, 2$ corresponds to Magnesium $(Mg)$,which has $2$ valence electrons.Metallic elements typically have $1, 2,$ or

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$2, 8, 2$

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(D) The electronic configuration $2, 8, 2$ corresponds to Magnesium $(Mg)$,which has $2$ valence electrons.Metallic elements typically have $1, 2,$ or $3$ valence electrons and tend to lose them to form positive ions.Since $2, 8, 2$ has $2$ valence electrons,it can easily donate them to achieve a stable octet,thus representing a metallic element.

Which one of the following combinations represents a metallic element?

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