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Question
Which of the following has the greatest electron affinity?
Which of the following has the greatest electron affinity?
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Solution
The correct option is B S
Electron affinity decreases down the group due to increase in number of shells. However, since O has high charge or electron density (due to its small size), it has least electron affinity in its group as the incoming electron will experience inter-electronic repulsions in O.
Electron affinity decreases down the group due to increase in number of shells. However, since O has high charge or electron density (due to its small size), it has least electron affinity in its group as the incoming electron will experience inter-electronic repulsions in O.
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