Which of the following will have positive electron affinity?
Correct answer: D. Addition of electron to (O-1)
- A. Addition of electron to (CI)
- B. Addition of electron to (C|*)
- C. Addition of electron to (O)
- D. Addition of electron to (O-1)
Explanation
Electron affinity is the energy change associated with adding an electron to a neutral atom to form a negative ion. Oxygen (O) typically has a positive electron affinity because it releases energy when an electron is added to form an O- ion.
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