# The correct order of ionization energy is :

$(a)\;Si > P > S \\(b)\; Si > P < S \\ (c)\;Si < P > S \\ (d)\;Si < P < S$

Solution :
Phosphorus has maximum ionization energy because of its half- filled electronic configuration .
The correct order is :$Si < P > S$
Hence c is the correct answer.
edited Oct 4 by meena.p