Which among the following has the maximum electron affinity?

Chalcogens

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Alkali Metals

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Noble Gases

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Halogens

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Solution

The correct option is D
Halogens

Halogens are present towards the right sides of the periodic table. Due to the presence of seven electrons in the outermost shell, the force of attraction between the electrons and the nuclei is high and thus they have very small size. Due to their smaller size, halogens have maximum electron affinity.

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