Question

Which set of the element is listed in order of increasing ionization energy
A) Sb<As<S<P<Cl
B) Cl<Sb<P<As<S
C) As<Cl<P<S<Sb
D) Sb<As<Cl<S<P​

Answer 1

A) set of the element is listed in order of increasing ionization energy

Answer 2

answer is option (A)

As atomic number increases along a period ionization energy increases and in a group it decreases

for S and P, theoretically ionization energy of S should be greater than P but due to the stability of half filled electronic configuration, ionization energy of P is greater than S