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I was just thinking suddenly - what happens when you cut a solid on a molecular level?Is it simply that you break bonds? If it is, why is it not possible that two solids become one solid again when you put them together at the same place you cut them?
Hmm, that is true, but let's consider a case.Supposing we use a highly unreactive metal, such as Gold. After breaking the metallic bonds between a certain section, we wouldn't expect any real contamination via oxidation so we could still say it's pure gold. (Okay, maybe with tiny dust particle in the middle of nowhere if we're in a clean room) If there is indeed a sea of delocalized electrons in the metal, then putting them together should allow the sea to delocalize into each other (hence why two metals in contact conduct, right?) and so it should eventually become one again. Am I correct in thinking this way?