Ionization energy ________ from top to bottom in a group and ________ from left to right in a period.

Question

Quizplus · Accepted Answer

Ionization energy decreases from top to bottom in a group due to the increasing distance of the valence electrons from the nucleus and the increased effect of electron shielding, making it easier to remove an electron. It increases from left to right in a period because the nuclear charge increases, pulling electrons closer and making them harder to remove.

Ionization Energy ________ from Top to Bottom in a Group