In a text about the properties of metals, "Metals are good conductors of heat and electricity." Which of the following is not a property related to this characteristic? A. They have a high density B. They have free electrons C. Their atoms are closely packed D. They are brittle 相关...
A. Non-metals are bad conductors of heat. B. Metals can transfer heat quickly. C. All materials are good conductors of heat. D. Heat can be conducted through metals E. asily. 相关知识点: 试题来源: 解析 C。本题考查对热传导的理解。A 选项非金属通常是不良导体,符合常理;B 和 D 选项...
题目 why some metals are better conductors of het then other希望用英语回答这道题 答案 为什么有些金属导体比其他更好.Metal conductor resistance is small,easy to install,easy molding相关推荐 1why some metals are better conductors of het then other希望用英语回答这道题 反馈 收藏 ...
Chemical properties of non-metals 1) Nonmetals are poor conductors of heat and electricity. Graphite and Gas carbon are exceptions. 2) Unlike metals, nonmetals aren’t malleable and ductile. 3) Nonmetals react more with metals than with nonmetals.Tutorialspoint...
Metals are good conductors of heat and electricity because they contain a glut of free electrons. These free electrons are able to move around freely and collide with one another, propagating heat and electricity through the metal. The majority of materials that conduct heat and electricity are m...
2 ___ metals are good conductors, silver ___ the best conductor of all. A.Almost, being B.Almost all, being C.Almost, is D.Almost all, to be 3【题目】metals are good conductors, silver thebest conductor of all.A.Almost, beingB. Almost all, beingC. Almost, isD . Almost all,...
Which of these materials are usually poor conductors of heat and electricity? a. metals b. metalloids c. nonmetals d. alkaline earth metals Periodic Trends: The periodic table can be used as a useful tool to classify and organiz...
One of the common characteristics of metals in the periodic table is that they are___. A. good conductors of electricity B. poor conductors of heat C. gases at room temperature D. always soft and E. asily cut 相关知识点: 试题来源...
Why are nonmetals poor conductors of heat and electricity? Why are nonmetals good insulators? Why are metals good conductors of heat and electricity? Why is a good conductor of electricity also a good conductor of heat? How do insulators help conductors?
百度试题 结果1 题目Metals are good conductors of both___ A. Electricity and heat B. Heat and light C. Heat and magnetism D. Electricity and magnetism 相关知识点: 试题来源: 解析 A 反馈 收藏