In Class IX you have learnt about various elements. You have seen that elements can be classified as metals or non-metals on the basis of their properties. n Think of some uses of metals and non-metals in your daily life. n What properties did you think of while categorising elements as metals or non-metals? n How are these properties related to the uses of these elements? Let us look at some of these properties in detail. 3.1 PHYSICAL PROPERTIES 3.1.1 Metals The easiest way to start grouping...