(i) Sodium, carbon (diamond). Heavy and light metals. • Reaction of Metals with Non-metals → Reactivity of elements is the tendency to attain a completely filled valence shell. Nonmetals are generally classified into three categories depending on … Non-metals are the elements which form negative ions by gaining an electron. Ans: A chemical element (such as boron, carbon or nitrogen) that lacks metal properties and is capable of forming anions, acid oxides, acids, and stable hydrogen compounds. A metalloid is an element having intermediate properties of both metals and nonmetals. Ans: substance whether solids, liquids, or gases can be metals. Table 3.1 Element Symbol Type of Hardness Malleability Ductility Conduction Sonority surface Heat Electricity On the bases of the observations recorded in Table 3.1, discuss the Most of the metals in existence have the power to conduct electricity unlike all non-metals. A metal is an element which is typically hard, shiny, fusible, malleable, and ductile, with good electrical and thermal conductivity. They are electronegative in character. Physical Properties of Metals. On the other hand, only a few metals like K, Na, Ca, and Mg react with hydrogen to produce metal hydrides. Non-metals have a tendency to gain or share electrons with other atoms. List of Gujarati Names of Metals and Non-metals from English Here is a list of Gujarati names of metals and non-metals from English. Nonmetals, when reacting with metals, tend to gain electrons (typically attaining noble gas electron configuration) and become anions: \[\ce{3Br2(l) + 2Al(s) \rightarrow 2AlBr3(s)} \nonumber\] Ferrous and non-ferrous metals. (ii)Mercury is liquid metal, bromine is liquid non-metal. Non-metals are brittle. What defines a nonmetal? 3.0 Density: Alkali metals have low density. (a) In the formation of compound between two atoms A and B, A loses two electrons and B gains one electron. Alloys made of mixtures of at least one metal with either other metals, or with non-metals. Main articles: Ferrous metallurgy and Non-ferrous metals. The following are the physical properties of metal : The physical properties make them useful for many purposes. A zigzag line runs down the right side of the table. (ii) Two metals which are used to make jewellary. are not able to conduct electricity or heat very well, very brittle (breakable), and cannot be made into wires or pounded into sheets. Physical properties of non-metals. Elements on this line are metalloids or semimetals, which have properties intermediate between those of metals and nonmetals. Since the discovery of the light bulb, the metal tungsten was widely used to … Key Differences Between Metals, Non-Metals, and Metalloids. Non- metals are non- malleable and non- ductile. For examples, diamond is a good conductor of heat and graphic is a good conductor of electricity. Metals vs Non-metals. Examples of non-metals are Iodine, Bromine, Helium, Neon, and Argon while that of metalloids are Arsenic, Tellurium, Antimony, Polonium, Tennessine, etc. Carry out the Activities 3.1 to 3.6 with these non-metals and record your observations. With the exception of graphite, non-metals are weak hea… Occurence of Metals. Refractory metal. All metals have a shiny appearance (at least when freshly polished); are good conductors of heat and electricity; form alloys with other metals; and have at least one basic oxide. They can be classified in a variety of ways depending on what property or characteristic you use as a yardstick. Some of the common examples of metals are copper, silver, gold, aluminium etc. The rows of the table are called periods and columns are called groups. Metals have a very high melting and boiling point. We have encountered the terms 'METALS' and 'NON-METALS' many times. Hardness: Non-metals are not hard rather they are generally soft. Do you remember learning about materials in Grade 4. Non-metals react with chlorine to produce covalent chlorides. 2.0 Melting point: Some metals like sodium potassium have low melting point, mercury is liquid at room temperature.Carbon a non-metal has a high melting point. Thus, non¬metals are also known as Electronegative Elements. Non-metals don’t react with dilute acids, but all the metals react with chlorine to form ionic metal chlorides. Each class has its own unique properties. Metals. Hardness: Most of the metals are hard, except alkali metals, such as sodium, potassium, lithium, … Classification of nonmetals. This video covers the difference between the properties of metals and non-metals, and takes a look at transition metals. In this chapter we will learn about metals and non-metals. 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