공부중
전차 친화도(electron affinity) 본문
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X + e− → X− + energy
같은 주기에서 전자 친화도는
원자번호가 증가할 수록 증가하지만
2족은 s 오비탈이 모두 채워져 있고,
15족은 p오비탈이 모두 채워져 있어
전자가 더해질때 덜 안정하다.
Cl > F> Br > I
그래프
7.5: Electron Affinities
The electron affinity (EA) of an element is the energy change that occurs when an electron is added to a gaseous atom to give an anion. In general, elements with the most negative electron affinities …
chem.libretexts.org
Electron affinity, the oft-forgotten — yet essential – periodic property | Chem13 News Magazine
“Ionic compounds form because metals want to give up valence electrons and nonmetals want to gain valence electrons” – a convenient fiction for students starting out in chemistry. But the part of the statement referring to metals is as fictitious as
uwaterloo.ca
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