The periodic table provides the most convenient way of organizing chemical elements by specific icons and is widely used in chemistry and physics as a quick and easy resource for scientists and students. In this guide, you'll find out about copper (Cu), a reddish metal that has been used since ancient times for making utensils, weapons and piping, and has proved to be a good conductor of heat; learn about aluminum (Al) and its strong, lightweight properties, which has led to it being used in aircraft manufacture and building construction; marvel at carbon (C), which makes up 0.025 percent of Earth's crust, and which is also one of the main elements of diamond, the hardest known natural material; and discover radon (Rn), a radioactive, odorless gas that is considered a toxic health hazard. This book will inform and fascinate anyone interested in the core chemical elements that make up our world and which are found in everything we make.