C2 The Periodic Table
12 videos • 757 views • by Revise Chemistry with Mr B In this topic you learn about The Alkali Metals (Group 1), The Halogens (Group 7) and the Noble Gases (Group 0). You will also learn the different ways that scientists tried to arrange the elements before Dmitri Mendeleev came up with a Periodic Table similar to the one we have today.