Let's take a look at a paper clip. A typical paper clip is made up of 1,000,000,000,000,000,000,000 atoms of iron. These atoms are tightly packed and in a crystalline structure, a regular arrangement ...
A metal is comprised of many individual crystals, or grains. These crystals are held together by electrons in the same way that electrons hold the atoms within each crystal together. For more on this ...
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