Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
On the basis of the description given, classify each of these solids as molecular, metallic, ionic, network, or amorphous, and explain your reasoning.
(a) A brittle, yellow solid that melts at 113 °C; neither the solid nor the liquid conducts electricity
(b) A soft, silvery solid that melts at 40 °C; both the solid and the liquid conduct electricity
(c) A hard, colorless, crystalline solid that melts at 1713 °C; neither the solid nor the liquid conducts electricity
(d) A soft, slippery solid that melts at 63 °C; neither the solid nor the liquid conducts electricity
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