JEE Chemistry
JEEChemistryPeriodic Table & PeriodicityClass 11

What is the difference between atomic radius and ionization energy?

As atomic radius decreases across a period, ionization energy increases — smaller atoms hold their electrons more tightly.

As atomic radius decreases across a period, ionization energy increases — smaller atoms hold their electrons more tightly. A reliable way to keep them apart is to focus on what each one is defined by, not just the similar-sounding words.

Key point

atomic radius vs ionization energy

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