Which of the following is true of the ionization energy of the elements?
A) Ionization energy generally decreases as we move left to right and decreases as we move top to bottom in the periodic table.
B) Ionization energy generally decreases as we move left to right and increases as we move top to bottom in the periodic table.
C) Ionization energy generally increases as we move left to right and decreases as we move top to bottom in the periodic table.
D) Ionization energy generally increases as we move left to right and increases as we move top to bottom in the periodic table.

Question

Quizplus · Accepted Answer

Ionization energy generally increases across a period from left to right due to increasing nuclear charge, which attracts electrons more strongly. It decreases down a group as the outer electrons are farther from the nucleus and are shielded by inner electrons.

Which of the Following Is True of the Ionization Energy