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METAL PROPERTIES, CHARACTERISTICS,. USES, AND CODES. SUBCOURSE NO. OD1643. US Army Correspondence. Course Program. 6 Credit Hours. GENERAL. The purpose of . chemical elements are divided into metals and nonmetals; however, there is no sharp .. Limestone is used to combine with the earth
(d). Malleability. (e). Lusture. CHEMICAL PROPERTIES OF METALS AND NON METALS. Metals and non-metals show different behaviour toward different chemicals. Reaction with Oxygen. In general, metals form oxides on combining with oxygen. Water solutions of these oxides are alkaline or basic in nature. For example:.
classified by Lavoisier in to metals and non-metals by studying their properties. metals. > Metals are mostly harder to cut. Their hardness varies from one metal to another. Some metals like sodium, potassium and magnesium are easy to cut. Metals when burned in the presence of oxygen, they combine with oxygen to.
of metals (iv) Physical properties of non-metals ) (v) Chemical properties of non-metals. Classification of elements .. (i) Comparison of metals and non-metals (ii) Uses of metals (iii) Uses of non-metals. Comparison of . potential ( lower in position in the reactivity series ) , combine them and set up the cell. For example a
and heat conductors, while non-metals are generally brittle (if solid), lack lustre, and are insulators. Properties of metals. Most metals have certain characteristic physical properties: they are usually shiny (they have metallic lustre), have a high density, are ductile and malleable, have a high melting point, are hard, are usually
M e t a ls & N o n M e t a lsINTRODUCTION All the elements can be classified as metals or non-metals depending on their properties. If react with water at different rates. silver and nickel do not react with water. non-metals are brittle. changes blue litmus paper into red.com. metals form oxides on combining with oxygen.
types studied in chapter 1. Metals and Non-metals. Chapter 3. Assessment Technique: Multiple Choice Questions Based Worksheet. Objectives: To enable students to-. 0. Recall various physical and chemical properties of metals and non-metals. 0. Draw correlation between the oxide of an element and pH of its aqueous
Major nonmetals present in the earth's crust are Oxygen, Silicon, Phosphorous and sulphur. What are metalloids? The elements which have like metals and nonmetals both are called metalloids. Boron (B), Silicon (Si) and. Arsenic (As) are metalloids. What are physical properties of metals? All metals show some common
their properties. ? Think of some uses of metals and non-metals in your daily life. ? What properties did you think of while categorising elements as metals or non-metals? ? How are these Do non-metals also have physical properties similar to that of metals? Almost all metals combine with oxygen to form metal oxides.
At home, in school, in the street or in office, we are surrounded by metals and non- metals. In the kitchen, we use both metals and non-metals. Cooking utensils are made of metals like iron, aluminium, zinc and copper. Our storage containers could be made of non-metals such as plastics and glass. Thus metals.
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