1 Metals in general are good conductors,___WHILE__ nonmetals are insulators.WHILE ---用于对比时。解释为“而- - - - ”。 2 Graphite conducts electricity and does not burn. ---and 解释为“并且- - -...结果一 题目 Metals in general are good conductors,___ nonmetals are insulators.A...
a他羡慕城市人的生活 He envies city slicker's life[translate] a禁止事项 Prohibition item[translate] a氨水的应用范围越来越广泛 The ammonia water application scope is more and more widespread[translate] aionic bonds with non-metals. Metals are opaque, lustrous, and good conductors of[translate]...
CBSE Class 10 Chemistry Chapter 3 Important Questions and Answers:In this article, we are providing some Important questions from CBSE board’s Class 10 Chemistry syllabus ofChapter 3 Metals & Non Metals. Metals and Non Metals is the second chapter under Unit I Chemical Substances - Nat...
A. good conductors of electricity B. poor conductors of heat C. shiny and hard D. liquids at room temperature 相关知识点: 试题来源: 解析 B。非金属在元素周期表中通常是热的不良导体。选项 A 是金属的特点;选项 C 通常是金属的特点;选项 D,非金属在室温下不一定是液体。反馈...
Metals and nonmetals are the two types of elements, and it’s crucial to know which one is which. Nonmetals (such as phosphorus and sulphur) are insulators, whereas metals (such as copper and aluminium) are good conductors of heat and electricity. The properties of a material are used to...
Metals are good conductors (both of heat and electricity) becauseat least one electron per atom is free: i.e., it is not tied to any particular atom, but is, instead, able to move freely throughout the metal. Why are metals good conductors of electricity and glass is not?
Definition of Non-Metal Non-metals are natural elements which do not have metallic properties. Often, they are available in the solid or gaseous state. In this type of elements, bromine is an exception as it exists in liquid state. They are good insulators of electricity and heat, non-lustr...
Are nonmetals good conductors? Metals, Nonmetals, and Metalloids: There are three broad categories of elements: metals, metalloids, and nonmetals. Most of the elements on the periodic table of elements are metals. This includes 86 of the 118 known elements. Nonmetals have nearly the exact opp...
Metals are elements that are good conductors of electric current and heat. They also tend to be shiny and bendable – like copper wire. The majority of elements
The majority of materials that conduct heat and electricity are metals, for the simple reason that metals contain a glut of free electrons.