Chemistry, asked by atif91491, 5 months ago

second electron affinity is positive why​

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Answered by piyush2569
1

Answer:

You are forcing an electron into an already negative ion. It's not going to go in willingly! The positive sign shows that you have to put in energy to perform this change. The second electron affinity of oxygen is particularly high because the electron is being forced into a small, very electron-dense space.

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