Which of These Are Both Isoelectronic with Noble Gas Atoms

question 3

Multiple Choice

Which of these are both isoelectronic with noble gas atoms?

• A)Fe²⁺ and S^2-
• B)Sc³⁺ and Cl^-
• C)Ca²⁺ and H⁺
• D)Ag⁺ and P^3-
• E)Fe³⁺ and Fe²⁺

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