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。反馈 收藏 ...
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
Between each sheet, there are weaker (pi) bonds along which the electrons are free to move. It is the movement of electrons between the layers that explains this unusual property of graphite.Copper contains metallic bonds and so conducts electricity. Rubber contains covalent bonds and so does ...
Let’s go back to the periodic table to explain which metals best conduct electricity. The number of valence electrons in an atom is what makes a material able to conduct electricity. The outer shell of the atom is the valence. In most cases, conductors have one or two (sometimes three) ...
DIn [Cu(NH3)4]SO4, the ligand satisfies only the secondary valencies of copper.Submit Which of the following statement is .are correct ? View Solution Which of the following statement is (are) correct? View Solution Which of the following statement is (are) correct ? View Solution Which ...
Note that the total amount of professional labor required (which is tied to the overall complexity of the roof) is by far the most significant cost factor! On a possible wider range of prices: Because metal roofs come in different materials and metal alloys like aluminum, steel, zinc (...
13. Linguistics A morpheme or morphemes regarded as a form to which affixes or other bases may be added. 14. Mathematics a. The side or face of a geometric figure to which an altitude is or is thought to be drawn. b. The number that is raised to various powers to generate the prin...
1.an element, a precious grey metal which is used in making jewellery, ornamentsetc.The tray was made of solid silver.plata 2.anything made of, or looking like, silverespeciallyknives, forks, spoonsetc.Burglars broke into the house and stole all our silver.plata ...
Copper is a chemical element, a reddish, extremely ductile (able to be drawn out into a thin wire) metal. It is an excellent conductor of electricity and heat. Where does copper come from? Copper is found in the free metallic state in nature. First used in 8000 BCE, it was a substitu...
process for assembling a metal conductor of electricity with an element is a substance is obtained by this process and assembly of refractoryTITUS,LESLIE