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Results tagged with periodic-trends
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user 13217
Trends which are observed in the properties of elements as you move along the periodic table in a given direction.
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Which element has a greater second electron affinity, sulfur or oxygen?
The most important fact here is that the electron added to $\ce{S-}$ goes into an $n=3$ orbital ($3p$), whereas the one added to $\ce{O-}$ goes into an $n=2$ orbital ($2p$).
The larger $n=3$ orbital …
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