النتائج (
الإنجليزية) 3:
[نسخ]نسخ!
In diamond, there are three-dimensional network of strong covalent bond. This makes it very difficult to diamond. Because of the hardness, diamond is used in the manufacture of cutting tools and grinding. On the other hand, flat layers of carbon atoms in the graphite.The layers are held by the weak van der fall, and thus can easily slip over the other. This makes the graphite is very soft and slippery. Because graphite is soft and slippery nature, if using this as a Lltshhym.
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