Atomic crystals
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Last Update: 2020-11-25
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Source: Internet
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Author: User
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a crystal consisting of the same non-metallic element or an
finite" number of atoms of heterogeneic elements combined with co-priced keys, called co-priced atomic crystals. An infinite molecule formed by an "infinite" number of atoms, if the bond between atoms is not purely a co-priced bond, there is still a role such as Van der Worrest, it should belong to the mixed key crystal (such as graphite). Typical co-priced atomic crystals (e.g. diamond) are combined with typical co-priced bonds, so high hardness, high melting point, low conductivity and thermal conductivity. In addition to diamonds, crystals formed by si, Ge, Sn and other monotones have similar structures, all of which form crystals in the form of tyhome stacking (A4type). The
compound
co-priced crystals formed by heterogeneity atoms are six parties (
ZnS), cubic (ZnS, AgI), four halides of copper, diamond sand (SiC), white silica (SiO 2 ) and so on.
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