ACTIVITY 1 Do you think the substance represented in this diagram is an element? To help you answer the question, let us go through the following questions. 1. Write down what you see in the picture. 2. Do you think it is a mixture of substances or a pure substance? Why do you think so? 3. Are the atoms all of the same kind? 4. What class of substances is made up of only one kind of atom? 5. Is the substance an element? Why? 6. Can elements be made up of molecules?​