📖 what
What is electron affinity?
Quick Answer
Electron affinity is the energy change when an atom gains an electron. For many elements, it helps show how strongly they attract extra electrons.
The Full Story
Electron affinity describes the energy released or absorbed when a neutral atom in the gas phase gains an electron. Halogens such as chlorine have high electron affinities because they are close to completing their outer shell. Not every element gains electrons easily, and some have low or even unfavorable electron affinity values. The concept helps explain why certain elements form negative ions more readily than others.
Key Facts
1.Chlorine has a high electron affinity
2.It describes the energy change when an atom gains an electron
3.Halogens are especially eager to gain electrons
YouTube Angle
Suggested video title for this topic:
"Why some atoms want an extra electron"
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