OCCURRENCE OF METALS The earth’s crust is the major source of metals. Seawater also contains some soluble salts such as sodium chloride, magnesium chloride, etc. The elements or compounds, which occur naturally in the earth’s crust, are known as minerals. At some places, minerals contain a very high percentage of a particular metal and the…

Properties of Ionic Compounds To learn about the properties of ionic compounds, let us perform the following Activity: Activity 3.13 Take samples of sodium chloride, potassium iodide, barium chloride or any other salt from the science laboratory. What is the physical state of these salts? Take a small amount of a sample on a metal…