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प्रश्न
Which halogen has the highest value of negative electron gain enthalpy?
पर्याय
Fluorine
Chlorine
Bromine
Iodine
MCQ
उत्तर
Chlorine
Explanation:
Iodine's electron gain enthalpy is less negative than chlorine's. However, due to the fluorine atom's small size, its negative electron gain enthalpy is lower than that of chlorine. In the comparatively small 2p orbitals, it exhibits extremely high inter electronic repulsion. As a result, the nucleus exerts less pull on incoming electrons.
∴ Chlorine has the highest value of electron gain enthalpy.
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