hello friends today we'll learn about materials metal and non-metal [Music] do you know the ball you were playing with is made up of a non-metal the materials present around you are grouped widely into metals and non-metals ah you started an assignment on this topic great let me make it easier for you at first let's see what metals are yeehaw like these metal bars those materials which possess the characteristic of being hard malleable shiny fusible ductile etc are called metals for example iron gold aluminium copper etc let's see the physical properties of metals come with me malleability it allows the metals to be beaten into thin sheets due to the presence of this property the shape of aluminium wire and iron nail can be changed on beating conductivity it allows the heat and current to pass through the metals easily metals like iron and copper wire are good conductors of electricity sonorus due to this property of metals produces ringing sounds on hitting lustrous because of this property metals shine and their structures are capable of reflecting incident light ductility this property allows the metals to be drawn into the wires metals like copper and aluminium wires are used in electric connections let's see some uses of metals metals are generally used in building machines automobiles airplanes and cars etc some metals like copper are used in making wires silver and gold are used for making ornaments hmm now the non-metals those materials which do not possess the characteristics of metals are known as non-metals few examples are sulfur carbon phosphorus and oxygen now the physical properties of non-metals brittle or soft the solid non-metals are brittle or soft as they can be broken down into a powdery substance on tapping down examples are coal and sulfur but you know diamond is an exception it is the hardest non-metal they are bad conductors of electricity and heat except graphite non-metals may be either in solids liquids or gaseous state they do not possess metallic luster and are not sonorous as they do not produce any ringing sound non-metals possess no malleability and they are not ductile and now the use of non-metals oxygen which is necessary for all living beings to survive is a non-metal nitrogen and phosphorus are used as fertilizers to increase the growth of plants some non-metals like chlorine are used for water purification now you know a lot about metals and non-metals stay tuned for more videos bye bye