Place the following atoms in order of increasing ionization energy: N,O,and P.

Question

Quizplus · Accepted Answer

Ionization energy generally increases across a period (from left to right) in the periodic table because the nuclear charge increases, making it harder to remove an electron. It decreases down a group as the outer electrons are further from the nucleus and more shielded by inner electrons. Since N, O, and P are in the same group with N and O in the same period, and P is below them, the order of increasing ionization energy is P < N < O.

Place the Following Atoms in Order of Increasing Ionization Energy