Question:
Which of the following species has the highest electron affinity?
Which of the following species has the highest electron affinity?
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Electron affinity generally increases as you move across a period from left to right, but the trend can be influenced by electron-electron repulsion.
Updated On: Feb 10, 2026
- F-
- Cl-
- O-
- Na-
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The Correct Option is C
Solution and Explanation
The electron affinity of oxygen is higher than that of \( F^- \) and \( Cl^- \) because of the electron repulsion in the \( F^- \) ion, which makes it less stable. \( O^- \), being smaller and less repulsive, has a higher electron affinity.
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