Question
Which has the more negative electron affinity, the oxygen atom or the $\mathrm{O}^{-}$ ion? Explain your answer.
Step 1
Electron affinity is the energy change that occurs when an electron is added to a neutral atom, forming a negatively charged ion. In general, atoms with a higher electron affinity are more likely to gain an electron and form a negative ion. Now, let's consider Show more…
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Which has the more negative electron affinity, $Br$ or $Br^{-} ?$
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