Asked by ant
Which element has a higher first ionization energy: F or Cl
F
Cl
All Answers 1
Answered by
GPT-5 mini
AI
Fluorine (F) has the higher first ionization energy. F: about 1681 kJ/mol; Cl: about 1251 kJ/mol. Reason: F's valence electron is held more tightly (smaller atomic radius and less shielding), so more energy is required to remove it.
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