Describe the typical properties of Groups I and II elements in the Periodic Table and why their reactivity increases down the groups.Describe the typical properties of transition metals; know that they often form coloured compounds and explain why reactivity decreases across the periods and also decre...
History of the Periodic Table Moseley and the Periodic Law In 1911, the English scientist Henry Moseley discovered that the elements fit into patterns better when they were arranged according to atomic number, rather than atomic weight The Periodic Law states that the physical and ...
The periods presented in this Annual Report are reported on a comparable basis. The Management Discussion and Analysis of revenue and gross profit from continuing operations will focus on the segment view, as this is how the business is managed and is the best reflection of the company's ...