File:Electron Sea (Plasma).jpg

Summary

English: This was drawn to illustrate the subatomic particles present in a portion of plasma, with a delocalized electron "sea", very much like the electron "sea" that is present in conductive metals. It is because of this electron delocalization that plasma is able to conduct electricity.

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Source:

https://en.wikipedia.org/wiki/File:Electron_Sea_%28Plasma%29.jpg