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Negatively charged particle with spin 1/2. A component of mundane terrestrial matter, and part of all neutral atoms and molecules. It has a mass about 1/1800 that of a proton. Its antiparticle is the positron.

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When two wires touch, electrons can flow from one to the other. Is that a metallic bond?

If two very hot wires touch, they melt together to form one wire and electrons can flow between them. … Is there a conceptual difference at the atomic shell/bonding level between electrons moving through a solid and electrons moving across two separate pieces of metal that are touching? …
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