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BITSAT2016ChemistryClassification of Elements and Periodicity in PropertiesActual

The decreasing order of the ionization potential of the following elements is

Options

  1. ANe > Cl > P > S > Al > Mg
  2. BNe > Cl > P > S > Mg > Al
  3. CNe > Cl > S > P > Mg > Al
  4. DNe > Cl > S > P > Al > Mg

Correct answer

B. Ne > Cl > P > S > Mg > Al

Step-by-step solution

Closed shell (Ne), half filled (P) and completely filled configuration (Mg) are the cause of higher value of I.E.

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