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Official Solution & Conceptual RationaleOurs Academy Hisar - Chapter 10 Periodic Classification
Chlorine (Cl) has the highest electron affinity in the periodic table (-349 kJ/mol). Fluorine has lower affinity due to interelectronic repulsion in its compact 2p shell.
क्लोरीन (Cl) की इलेक्ट्रॉन बंधुता पूरी आवर्त सारणी में सबसे अधिक (-349 kJ/mol) होती है।