Order the elements S,Cl,and F in terms of increasing ionization energy.
A)S,Cl,F
B)Cl,F,S
C)F,S,Cl
D)F,Cl,S
E)S,F,Cl

Question

Quizplus · Accepted Answer

Ionization energy generally increases across a period from left to right due to the increasing nuclear charge. Since S, Cl, and F are in the same period with S being the furthest left and F being the furthest right, the order of increasing ionization energy is S < Cl < F.

Order the Elements S,Cl,and F in Terms of Increasing Ionization