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Which one of the following is not an example of a covalent network solid?rngroup of answer choicesrnrndiamondrnrnsio2rnrngernrngraphiternrnnone of the above
Accepted Answer
Covalent network solids are characterized by their strong covalent bonds that extend in all directions, forming a continuous network throughout the solid. Diamond, SiO$_2$, and graphite are all examples of covalent network solids. Ge, on the other hand, is a semimetal with a diamond cubic crystal structure and is not a covalent network solid.
Therefore, the correct answer is Ge.
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