What is the correct order of electron affinit | vedclass

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Question

(A) Electron affinity generally increases across a period from left to right due to an increase in effective nuclear charge and a decrease in atomic s

Vedclass · Accepted Answer

Pnicogen < Chalcogen < Halogen

Vedclass · Answer

(A) Electron affinity generally increases across a period from left to right due to an increase in effective nuclear charge and a decrease in atomic size. For elements in the same period,the order is: $Pnicogen (Group \ 15) Halogens have the highest electron affinity in their respective periods because they only need one electron to achieve a stable noble gas configuration. Therefore,the correct order is $Pnicogen < Chalcogen < Halogen$.

What is the correct order of electron affinity for the given groups?

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