“Silver is the best conductor of electricity because it contains a higher number of movable atoms (free electrons). For a material to be a good conductor, the electricity passed through it must be able to move the electrons; the more free electrons in a metal, the greater its conductivity....
Carbon is a non-metal and therefore has covalent bonds. However, in this experiment, it exhibited metallic properties. Carbon in the form of graphite is the only non-metallic element that conducts electricity.As we all know, graphite is composed of sheets of hexagons of carbon atoms joined ...
A. Graphite B. Silicon C. Phosphorus D. Sulfur 相关知识点: 试题来源: 解析 A。题目中描述的元素是非金属且是良好的电导体。硅是半导体不是良好导体。磷和硫都是非金属但不是电导体。而石墨是非金属且是良好的电导体。反馈 收藏
百度试题 结果1 题目10. Which one of the following is the best conductor of heat?1) A metal plate3) A plastic plate2) A paper plate4) A wooden plate 相关知识点: 试题来源: 解析 1 反馈 收藏
百度试题 结果1 题目3. Which of the following is the best conductor of heat?2(1) A paper plate(2) A metal plate(3) A ceramic plate(4) A wooden plate 相关知识点: 试题来源: 解析 2 反馈 收藏
百度试题 结果1 题目【题目】a good conductor, the metal is madeinto cables.It isT o beBeBeing 相关知识点: 试题来源: 解析 【解析】D 反馈 收藏
题目Which substance is a good conductor of electricity? A. Glass B. Wood C. Metal D. Plastic 相关知识点: 试题来源: 解析 C。本题考查物质的导电性。Glass(玻璃)、Wood(木头)、Plastic(塑料)都是绝缘体,不导电;Metal(金属)是良好的导体。
What metal has the lowest melting point? What is a metallic solid? What is the lightest alkaline earth metal? What metal is the best electric conductor? What is the most reactive metallic atom? What is the most abundant metal element in the Earth's crust?
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What metal is the best electric conductor? What is a conductivity in chemistry? What is the most reactive non-metallic atom? At what temperature will a solid melt? What is a copper and zinc alloy? What sort of elements are involved in metallic bonding?