The resistivity (a measure of electrical resistance) of graphite is (0.4 to 5.0) × 10-4 ohm . cm in the basal plane. (The basal plane is the plane of the six- membered rings of carbon atoms.) The resistivity is 0.2 to 1.0 ohm . cm along the axis perpendicular to the plane. The resistivity of diamond is 1014 to 1016 ohm . cm and is independent of direction. How can you account for this behavior in terms of the structures of graphite and diamond?
Answer to relevant QuestionsLabel the following hydrides as ionic, covalent, or interstitial, and support your answer. The light blue atoms are hydrogen atoms. Elemental nitrogen exists as N2, whereas in the gas phase the elements phosphorus, arsenic, and antimony consist of P4, As4, and Sb4 molecules, respectively. Give a possible reason for this difference between N2 and the ...In each of the following pairs of substances, one is stable and known, whereas the other is unstable. For each pair, choose the stable substance, and explain why the other compound is unstable. a. NF5 or PF5 b. AsF5 or ...Draw Lewis structures for the AsCl4+ and AsCl6- ions. What type of reaction (acid–base, oxidation–reduction, or the like) is the following? 2AsCl5(g) → AsCl4AsCl6(s) Sulfur forms a wide variety of compounds in which it has 16, 14, 12, 0, and 22 oxidation states. Give examples of sulfur compounds having each of these oxida-tion states.
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