Metals, Semimetals, and Nonmetals:金属和非金属,半金属,金属,半金属,and,非金属 文档格式: .ppt 文档大小: 6.65M 文档页数: 97页 顶/踩数: 0 / 0 收藏人数: 0 评论次数: 0 文档热度: 文档分类: 论文 -- 毕业论文 文档标签: 金属 半金属 and 非金属 系统标签: semimetals metals 半金属 ...
Metals, Semimetals, and Nonmetals:金属和非金属,半金属, 热度: Properties of Metal, Nonmetals, and Metalloids:特性的金属,非金属,金属 热度: Metals,Nonmetals, Semi-metals MetalsandNonmetals Li 3 He 2 C 6 N 7 O 8 F 9 Ne 10 Na
Non-metals and Semimetals Nonmetals An element that lacks most of the properties of a metal. Poor conductors of heat and electricity Dull and brittle Nonmetals Gases at room temperature: oxygen, nitrogen, fluorine, chlorine, hydrogen, noble gases Solids at room temperature: carbon, iodine, sulfur...
Metals, Nonmetals, and Metalloids Chapter 6 Model Lesson Bellringer 1. “Would you use a sheet of aluminum foil as a potholder for removing a hot pan from the oven? 2. Would you use a pan made of wood? 3. Why or why not?” Objectives Explain why the elements are in each grou...
CHAPTER 6 METALS AND NON METALS
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金属断裂概述FractureofMetals.ppt,金属断裂FractureofMetals 知识扩展 Griffith裂纹理论 - Orowan修正 金属材料的强度设计:以屈服强度为基础 安全系数-许用应力 脆断事故在屈服应力以下发生:只考虑屈服强度不能保证使用的安全→塑性/韧性 延伸率/ 断面减缩率/ 冲击韧性 /
10 Metals and Alloys Edublogs – education blogs 10金属与合金教学部落格–教育博客.ppt,What are metals used for? Why are metals important? Using metals Uses of metals – activity What else can metals be used for? What decides what metals are used for? D
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•Aluminumcans,copperwireorcarbatteriescompletetheirusefullife,theybecomescrapmetalandcanberecycledtomanufacturenewconsumerproducts •Nonferrousmetalsarealsoanimportantrawmaterialconservingnaturalresourcessuchasvirginores.Inaddition,farlessenergyisrequiredtomanufactureproductsusingrecyclednonferrousmetal •Wasteofresources...