Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

The shielding effect has what kind of influence on ionization energy?
Options
A Increases it
B Decreases it
Correct Answer
C No effect
D Increases nuclear charge
Correct Answer

Option B is the correct answer.

Detailed Explanation

The shielding effect occurs when inner electrons repel and block the full pull of the nucleus on outer electrons. This weaker attraction makes the outer electrons easier to remove, thus decreasing the ionization energy.

Hint

Inner electrons 'shield' the outer electrons from the full force of the nucleus.

Question Info