Addition of an electron to a gas-phase Si atom results in the release of more energy than addition o — Atomic Structure Chemistry Question
Question
Addition of an electron to a gas-phase Si atom results in the release of more energy than addition of an electron to a gas-phase P atom. What is the best explanation for their relative electron affinities?
A.✓ Correct
The electron added to Si experiences less electron-electron repulsion than the electron added to P.
B.
The electron added to Si enters a lower-energy subshell than the electron added to P.
C.
Si is more electronegative than P.
D.
Si is smaller than P.
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