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Fill in the blanks choosing appropriate words given in brackets :(Sodium chloride, Caesium chloride, copper, diamond, graphite, ions, atoms, close, 74%, 68%.
The crystal of diamond is made up .................. while that of sodium chloride is made up of ..............

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To solve the question, we need to determine what the crystal structures of diamond and sodium chloride are composed of. 1. **Identify the composition of diamond:** - Diamond is an allotrope of carbon. In its crystal structure, diamond consists of carbon atoms arranged in a tetrahedral lattice. - Therefore, we can fill in the first blank with "atoms." 2. **Identify the composition of sodium chloride:** - Sodium chloride (NaCl) is an ionic compound. In its crystal structure, it is made up of sodium ions (Na⁺) and chloride ions (Cl⁻) that are arranged in a cubic lattice. ...
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