Two elements that have the same ground-state valence shell configuration of ns²np² are A)K and Mg. B)O and Se. C)Al and Ga. D)Ge and Pb. E)Mg and Ca.

Name: Two elements that have the same ground-state valence shell configuration of ns 2 np 2 are A)K and Mg. B)O and Se. C)Al and Ga. D)Ge and Pb. E)Mg and Ca.
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Ge (Germanium) and Pb (Lead) both belong to group 14 of the periodic table and have the same ground-state valence shell configuration of ns²np².

Two Elements That Have the Same Ground-State Valence Shell Configuration