Consider the elements Mg, AI, S, P, and Si,


Consider the elements $\mathrm{Mg}, \mathrm{Al}, \mathrm{S}, \mathrm{P}$ and $\mathrm{Si}$, the correct increasing order of their first ionization enthalpy is:

  1. $\mathrm{Al}<\mathrm{Mg}<\mathrm{Si}<\mathrm{S}<\mathrm{P}$

  2. $\mathrm{Al}<\mathrm{Mg}<\mathrm{S}<\mathrm{Si}<\mathrm{P}$

  3. $\mathrm{Mg}<\mathrm{Al}<\mathrm{Si}<\mathrm{S}<\mathrm{P}$

  4. $\mathrm{Mg}<\mathrm{Al}<\mathrm{Si}<\mathrm{P}<\mathrm{S}$

Correct Option: 1


Order of IE, in $3^{\text {rd }}$ period is



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