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JEE Main2017ChemistryStructure of AtomActual

Among the following species which option contains all isoelectronic species?

Options

  1. AO - , F - , N a , M g +
  2. BO 2 - , F - , N a , M g 2 +
  3. CO - , F - , N a + , M g 2 +
  4. DO 2 - , F - , N a + , M g 2 +

Correct answer

D. O 2 - , F - , N a + , M g 2 +

Step-by-step solution

O -2 = 8+2 = 10 F - = 9+1 = 10 Na + = 11-1 = 10 Mg +2 = 12-2 = 10 All have 10 electrons

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