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...
The glass rod, plastic, rubber, and wood were poor conductors.Most of the samples with metallic properties contained metallic bonds. The exception was carbon.Carbon is a non-metal and therefore has covalent bonds. However, in this experiment, it exhibited metallic properties. Carbon in the form...
conductors, insulators, semi-conductor. Those substances which allow electricity to flow through it are known as conductors, which completely not allow electricity to pass through it is known as Insulators, and the one which is in the midway of the two is known as Semi-conductors.Answer a...
( ) are good conductors of electricity and heat, having lustrous appearance.A.metalsB
Halogens are ... (good / bad) conductors of heat and electricity. View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Boa...
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
Is steel a good conductor of electricity? Most metals conduct electricity to a certain extent. Some metals are more highly conductive than others. Copper, silver, aluminum, gold, steel, and brass are common conductors of electricity. Which metal is the poorest conductor of heat and electricity?
a我们的城市将更美好 Our city will be happier [translate] a被公开 Is publicized [translate] aasserts 断言 [translate] a一切进行你的好吗 All carry on you [translate] aGood conductors of electricity and heat 电和热好指挥 [translate]
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 me...