From Atoms to Materials

2 Water 3 1 classify matter into elements, compounds or mixtures 2 distinguish between physical properties and chemical properties 3 describe the structure of an atom in terms of protons, electrons and neutrons 4 recognize how atoms and elements are related 5 understand how to represent elements and atoms 6 recognize that elements are classified as metals, non-metals and semi-metals based on their physical properties 7 appreciate the Periodic Table as a systematic way to organize elements 8 recognize that elements in the same group of the Periodic Table have similar chemical properties 9 recognize that elements in the same group may have different reactivity 10 distinguish between elements, compounds and mixtures 11 recognize that a compound can be formed from, or broken down into its constituent elements 12 relate the uses of metals to their properties 13 recognize that metals may occur in nature as elements or compounds 14 relate the discovery and uses of metals to their abundance and ease of extraction 15 understand the advantages of using alloys 16 recognize that crude oil is a mixture of hydrocarbons 17 relate the uses of various types of plastics to their properties 18 describe some environmental problems associated with the use of materials, and the solutions to these problems 13.1 13.2 13.3 13.4 13.5 13.6 13.7 After studying this chapter, you should be able to A tower can be built from small building blocks. Similarly, all matter is made up of tiny units called atoms. © United Prime Educational Publishing (HK) Limited 2024 All rights reserved; no part of this publication may be reproduced, photocopied, recorded or otherwise, without the prior written permission of the Publisher. Sample