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Increasing order of effective nuclear charge in na, al, mg and si atoms

Answer»

Answer:

NaAL

Explanation:

  • The Ionisation energy of My will be larger than of Na DUE to fully filled configuration (3s)2
  • the ionisation of Al will be smaller than that of Mg due to one electron extra than the stable configuration . But smaller than Si due to INCREASE in effective nuclear charge of Si
  • =NaAl


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