Which of the following three sets consist of atoms or ions with the same electron configuration in the ground state?
(I) O^2-,Ne,and Mg²⁺
(II) Ni,Cu⁺,and Zn²⁺
(III) Hg,Tl⁺,and Pb²⁺

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The Answer of Which of the following three sets consist of atoms or ions with the same electron configuration in the ground state? (I)O^2-,Ne,and Mg²⁺ (II)Ni,Cu⁺,and Zn²⁺ (III)Hg,Tl⁺,and Pb²⁺ A)all three sets B)all but (I) C)all but (II) D)only (I)

Which of the Following Three Sets Consist of Atoms or Ions