(c) Describe the bonding and structure of a metal, and explain why metals are good conductors of electricity. 相关知识点: 试题来源: 解析(c)A metal consists of a lattice of positively charged ion ssurrounded by a sea of d
Answer: Metals are an excellent conductor of electricity and heatbecause the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions. ...
(a) Explain why(i) metals are good conductors of electricity,(ii) insulators do not conduct electricity.[3] 相关知识点: 试题来源: 解析 (a) mark (i) and (ii) together:mention of free electrons(current is) flow/movement of free electronsinsulators contain no free electrons / metals contain...
I say pure metal because alloys are relatively poor conductors of heat and electricity. This is because alloys are formed by introducing foreign atoms into a metal. This leads to an increase in irregularities, which then obstruct the motion of a free electron. As the free electrons are unable ...
Why are metals extremely good conductors of electricity?Because metals have large numbers of nonlocalized electrons.
Step by step video & image solution for Why are metals good conductions of heat and electricity? by Chemistry experts to help you in doubts & scoring excellent marks in Class 8 exams.Updated on:21/07/2023 Class 8CHEMISTRYSYNTHETIC FIBERES AND PLASTICS ...
What happens in the corrosion of a metal such as iron? Why some metals are common in our biosystem, for example, Fe in Blood, Co in Vitamin B12, and Cu in Shrimp? Briefly explain how the conduction of electricity takes place in iron m...
Why are metals good conductors, both of heat and electricity? What are the major disadvantages of a thermocouple? Why is metal a good THERMAL conductor but plastic is a worse conductor than metal? Explain. Why is tungsten not used as a fuse wire?
Does copper conduct more electricity than platinum? Why or why not? The iron formed in a blast furnace is called pig iron, which contains impurities that make the metal brittle. What are these impurities, and...
Copper, a red-orange metal, is an intrinsic part of the human body. Copper is a cofactor of many enzymes that are known as cuproenzymes. These enzymes help in energy production, the breakdown of iron, and neurotransmitter synthesis. Copper also plays a key role in...