Two p-block elements x(outer electronic configuration ${n s}^{2}$ , ${n p}^{3}$ ) and z (outer configuration ${n s}^{2}$ , ${n p}^{4}$ ) occupy neighbouring positions in a period. Using this information which of the following is correct with respect to their ionisation potential $I_{x}$ and $I_{z}$ .

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Two p-block elements x (outer configuration ns2np3) and z (outer configuration ns2np4) occupy neighbouring positions in a period. Using this information which of the following is correct with respect to their ionization potential Ix and Iz.

The correct option is A Ix>IzElement x has a stable half-filled electronic configuration. Therefore due to its stable electronic configuration, Ix>Iz.

Two p-block elements $x$ (outer configuration $n s^{2} n p^{3}$ ) and $z$ (outer configuration $n s^{2} n p^{4}$ ) occupy neighbouring positions in a period. Using this information which of the following is correct with respect to their ionization potential $I_{x}$ and $I_{z}$ .

The correct option is A $I_{x} > I_{z}$
Element $x$ has a stable half-filled electronic configuration. Therefore due to its stable electronic configuration, $I_{x} > I_{z}$ .