The ionization energy is affected by the following factors except?

A. distance of the outermost electron(s) from the nucleus
B. size of the positive nuclear charge
C. ability to attract shared electron(s)
D. screening effect of the inner electron(s)

Correct Answer: Option C

C. ability to attract shared electron(s)

Explanation

These 3 factors affect ionization energy:

Size of the positive nuclear charge
Size of atom (the distance of the outermost electron from the nucleus)
Screening effect of inner shell electrons