First published in the UK in 2018 by
Ivy Press
An imprint of The Quarto Group
The Old Brewery, 6 Blundell Street
London N7 9BH, United Kingdom
T (0)20 7700 6700 F (0)20 7700 8066
www.QuartoKnows.com

Text copyright © Jack Challoner
Design and layout copyright © 2018 Quarto
Publishing plc

All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage-and-retrieval system, without written permission from the copyright holder.

British Library Cataloguing-in-Publication Data
A catalogue record for this book is available from the British Library

Digital edition: 978-1-78240-720-1
Hardcover edition: 978-1-78240-556-6

This book was conceived, designed and produced by

Ivy Press

58 West Street, Brighton BN1 2RA, United Kingdom

Publisher Susan Kelly
Creative Director Michael Whitehead
Editorial Director Tom Kitch
Commissioning Editor Kate Shanahan
Project Editor Stephanie Evans
Design Manager Anna Stevens
Designer Wayne Blades
Picture Researcher Katie Greenwood
Illustrator John Woodcock with additional
illustrations by the author

Cover image Computer graphic of an atom of beryllium
Kenneth Eward/Biografx/Science Photo Library

Note from the publisher:
Although every effort has been made to ensure that the information presented in this book is correct, the authors and publisher cannot be held responsible for any injuries that may arise.