The first ionization enthalpy of the third period elements follows the order $Na Al S < Cl < Ar$. The reason for the higher value of $P$ compared to $S$ is:

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Q.The first ionization enthalpy of the third period elements follows the order $Na < Mg > Al < Si < P > S < Cl < Ar$ . The reason for the higher value of $P$ compared to $S$ is:

Greater effective nuclear charge in

P

Smaller size of

P

compared to

S

Stable half-filled

3p

subshell in

P

Stable fully-filled

3s

subshell in

P

The correct solution involves applying the fundamental concept to derive the final value step by step...

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