n Think of some uses of metals and non-metals in your daily life. •When a metal is hammered into a sheet or drawn into a wire, it does not break because the ions are in layers that slide past one another without losing their attraction to the electron cloud. METALS AND THEIR ORES. physical and mechanical properties of the material in the following articles. n What properties did you think of while categorising elements as metals or non-metals? Metals and Non-metals CHAPTER3 I n Class IX you have learnt about various elements. In some places, the mineral deposits in rock contain a high concentration of one metal. of the properties of metals. are common elements. Other properties include: State: Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature (Gallium is liquid on hot days). 2.4 Physical Properties of Metals The physical properties of the metals include luster, colour, size and shape, density, electric and thermal conductivity, and melting point. The metals share several common properties, including: It also has a section to list the physical characteristics of each type of element. their capacity for plastic deformation. These properties of non-metals provide one means by which we can distinguish metals from non-metals. edition titled Metals and Their Compounds in the Environment followed relatively quickly in 1991. Physical Properties of Metals. The following table shows the important physical properties of some pure metals. Metals are defined as those elements which have characteristic chemical and physical properties. Considering the properties of non-metals it is not shiny, malleable or ductile nor are they good conductors of electricity. Their physical and chemical properties vary widely. You have seen that elements can be classified as metals or non-metals on the basis of their properties. Metals are lustrous, malleable, ductile, good conductors of heat and electricity. Properties of Non-metals have less in common with each other than metals. The familiar types of metals are (iron, aluminium, copper, lead, zinc, silver, gold, etc.) Think of some uses of metals and non-metals in your daily life. Mechanical properties of metals include ductility, i.e. Let’s look at how these properties are … Metals are generally not used in their pure state but as mixtures of metals or metal and non metal constituents commonly referred to as alloys. We are sometimes interested in their conductivity (thermal, electrical) and magnetic properties. This worksheet can be used to test students by having them identify elements as metals, nonmetals, or metalloids. 19.1 Metals •Metals are also good conductors of electricity because the outer-level electrons are weakly held. What properties did you think of while categorising elements as metals or non-metals? • Copper’s advantages as primary metal and recycled metal, for brazed, long-life radiators and radiator parts for cars and trucks: Ernest Merian passed away in 1995 at the age of 75 while traveling to … An ore is … Ferrous metals (iron-alloys): carbon-, alloy-, stainless-, ... We are interested in their hardness, and how these properties change with temperature. Metals in general have high electrical conductivity, high thermal conductivity, and high density . Properties of Metals. Most elements can be considered metals. These metal deposits are called ores. The worksheet is available as a free download in PDF format. 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