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金属是重要的化学物质,其物理性质和化学性质是中考考查的重点和热点.下面结合典型例题剖析金属的性质.考点1金属的物理性质例1(2015·海南)铝是生活中常见的金属.金属铝常用作导线是利用它的____性.研析与解答:观察生活中的金属材料,大多数金属是银白色(铜为紫红色)、有光泽的固体,硬度较大(相互刻划可比较硬度大小),具有延展性、导热性和导电性.合金相比于组成它的纯金属有硬度大、抗
Metal is an important chemical substances, its physical and chemical properties are the focus and hot spots in the test. The following combination of typical examples of the nature of the metal. Test points 1 Physical properties of metals Example 1 (2015 · Hainan) Aluminum is a common metal in life Aluminum metal commonly used as wire is to use its ____. Analysis and Solution: To observe the life of the metal material, most of the metal is silver white (copper is purple), shiny solid, high hardness Scored comparable hardness), with ductility, thermal conductivity and electrical conductivity of the alloy compared to the pure metal it has hardness, resistance