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COMEDK2020ChemistryStructure of Atom

Mg ²⁺ is isoelectronic with

Options

  1. ACa ²⁺
  2. BNa ⁺
  3. CZn ²⁺
  4. DCu ²⁺

Correct answer

B. Na ⁺

Step-by-step solution

Number of electrons in Mgy =12 Number of electrons in Mg ²⁺=10 Number of electrons in Na ⁺=10 Mg ²⁺ is isoelectronic with Na ⁺ .

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