Periodesystemet

© H. Aschehoug & Co. (W. Nygaard) 2021 1. utgave / 1. opplag 2021

Materialet er vernet etter åndsverkloven. Uten uttrykkelig samtykke er eksemplarfremstilling, som utskrift og annen kopiering, bare tillatt når det er hjemlet i lov (kopiering til privat bruk, sitat o.l.) eller i avtale med Kopinor (www.kopinor.no).

Utnyttelse i strid med lov eller avtale kan medføre erstatnings- og straffansvar.

Redaktør: Siri Danielsen Grafisk formgiving: Milla Design Ombrekking: ord & form, Gudbrand Klæstad Omslag: Milla Design Omslagsfoto: rusm/iStock Bilderedaktør: Nina Hovda Johannesen

Tekniske tegninger og illustrasjoner: Anne Langdalen

Grunnskrift: Calicanto Regular 11/13,5 Papir: 100 g Arctic matt 1,0 Trykk: 07 Media AS Innbinding: Bokbinderiet Johnsen AS, Skien

ISBN 978-82-03-40791-8 Aunivers.no

Forfatterne har mottatt støtte fra Det faglitterære fond.

Bildeliste

Illustrations at page 209, 211, 214, 223, 224 from Tinkercad® software. Used with permission ourtesy of Autodesk, Inc. Tinkercad is a registered trademark or trademark of Autodesk, Inc., in the US and other countries. 4 Album/NTB, 5 UNIVERSITY OF CAMBRIDGE/AFP PHOTO/NTB, 9a Ole Kristian Strøm/NTB, 9b imageBROKER/NTB, 10 The Granger Collection/NTB, 11 Granger/REX/Shutterstock/NTB, 12a Granger/REX/Shutterstock/NTB, 12b Dorling Kindersley/Getty Images, 13 Erik Lam/iStock, 15a MONDADORI PORTFOLIO/Getty Images, 15b Mary Evans Picture/NTB, 15c Nils Jorgensen/REX/NTB, 16 BruceBlock/iStock, 17a IanRedding/ Shutterstock/NTB, 17b Shutterstock/NTB, 18a imageBROKER/NTB, 18b Marc Shandro/GettyImages, 18c Universal History Archive/REX/ Shutterstock/NTB, 20 Science Photo Library/NTB, 21a Amboseli National Park vannoyphotography/Shutterstock/NTB, 21b Shutterstock/NTB, 22a imageBROKER/Manfred Bail/NTB, 22b Science Photo Library/NTB, 23 Mario Tama/Getty Images/AFP/NTB, 24 bio.miami.edu, 25 Shutterstock/ NTB, 26a iStock, 26b Ekaterina P/iStock, 27 OpenTreeofLife.org, 36 Science Photo Library/NTB, 37a Maskot/NTB, 37b Simonkr/iStock, 39 Gorodenkoff/iStock, 40 Miljødirektoratet, 42 Jørn H. Moen/Aftenposten/NTB, 43 Oneclearvision/iStock, 44a Tony Gwynne/Alamy, 44b Stock Photo/NTB, 45 a iStock, 45b BlackJack3D/iStock, 45c William Potter/Shutterstock/NTB, 45d Shutterstock/NTB, 46a Hera Food/Alamy Stock Photo/ NTB, 46b Ridiumphotographics/iStock, 48a Jan Petter Lynau/VG/NTB, 48b Lekcej/NTB, 49 NTB, 51a Steinar Myhr/NN/Samfoto/NTB, 51b Elin Kalleson, 52 Shutterstock/NTB, 53 a, b, c ibreakstock/Shutterstock/NTB, 70 REX/Shutterstock editorial/NTB, 71 JohnnyGreig/GettyImages, 72 Teivans/ istock, 73 Science Photo Library/NTB, 75 bh007/iStock, 76 Science Photo Library/NTB, 77 Shutterstock/NTB, 78 Education Images/Contributor/ GettyImages, 80 Science Photo Library/NTB, 83 Andrey Popov/Shutterstock/NTB, 85 Jelena990/Shutterstock/NTB, 94 Thea-Fredrikke Grini/ Bymiljøetaten/Oslo kommune, 95 &#169 morganl/iStock, 97a, b, c , d, e Wilma Sofie Gregers, 98 whitehoune/Shutterstock/NTB, 105 Brian Randle/ Mirrorpix/Getty Images, 106 Science Photo Library/GettyImages, 109a Figure8Photos/GettyImages, 109b Hung Chung Chih/Shutterstock/NTB, 111 Lars Neumann/iStock, 112 Johner Images/NTB, 122, Rafa Fernández Torres/GettyImages, 123 StockPlanets/iStock, 124a Media/Medical/UIG/REX/ Shutterstock editorial/NTB, 124b, c Science Photo Library/NTB, 125 Mediaphotos/GettyImages, 126a Bettmann/Contributor/GettyImages, 126b Universal History Archive/Getty Images, 127 Hotoguns/iStock, 128 Maskot/iStock, 129a, Farhan Monir Hussain/EyeEm/GettyImages, 129b Stian Lysberg Solum/NTB, 130 Thomas Reutter/Plainpicture/NTB, 131 Maskot/Maskot/NTB, 132 Astrid Doerenbruch/Plainpicture/NTB, 133 r.classen/ Shutterstock/NTB, 136 Bricolage/Shutterstock/NTB, 137 Fabio Principe/Shutterstock/NTB, 144 Trygve Bølstad/Samfoto/NTB, 145 Pål Hermansen/ NN/Samfoto/NTB, 146 Alexey Rezvykh/Alamy Stock/NTB, 149a, 149b Steinar Myhr/NN/Samfoto/NTB, 149c Eye Ubiquitous/REX/Shutterstock editorial/NTB, 150 Espen Bratlie/Samfoto/NTB, 151a Jan Petter Lynau/VG/NTB, 151b Constantinis/iStock, 152 Cris Faga/Zuma Press/NTB, 154 Roberto Gennaro/iStock, 155a Svanemerket/NTB Tema, 155b EU Ecolabel/NTB Tema, 155c Jens Sølvberg/Samfoto/NTB, 156 ag_cz/iStock, 157 Truls Antonsen/NRK, 158 Luke Duggleby/Redux/NTB, 159a Agitons/iStock, 159b LukaTDB/iStock, 170 Science Photo Library/NTB, 171 Robert Bråthen/Samfoto, 172 VizArch/iStock, 174a Andrei Nekrassov/Shutterstock/NTB, 174b Pawel Michalowski/Shutterstock/NTB, 175 Steinar Myhr/ Samfoto/NTB, 176 Andrei Nekrassov/Shutterstock/NTB, 178 demarco-media/iStock, 180 DigitalVision Vectors/GettyImages, 181 Chones/Shutterstock/ NTB, 184a Sergiy Kuzmin/Shutterstock/NTB, 184b, c Andrei Nekrassov/Shutterstock/NTB, 185 Bart Coenders/iStock, 186a Tom Kolstad/Aftenposten/ NTB, 186b Baard Næss/NN/Samfoto/NTB, 187a, b Espen Bratlie/Samfoto/NTB, 188 Kjell Herskedal/SCANPIX/NTB, 189 Terje Pedersen/NTB, 190 Espen Bratlie/Samfoto/NTB, 200 Maridav/Shutterstock/NTB, 201 Maskot/NTB, 202 Mary Evans Picture/NTB, 203 aekikuis/Shutterstock/NTB, 204 REX/Shutterstock editorial/NTB, 205 NTB Tema, 206 Science Photo Library/NTB, 207 khunkorn laowisit/Alamy Stock Photo/NTB, 208a Sverre A. Børretzen/Aktuell/NTB, 208b Davor Puklavec/PIXSELL/Pa Photos/ntb, 208c AlesiaKan/Shutterstock/NTB, 210 Science Photo Library/Getty Images, 212 imageBROKER/Karin Rollett-Vlcek/NTB, 213 Ulf Nygaard/NTB, 215a Kristina Kokhanova/Shutterstock/NTB, 215b Hoeni.T/Plainpicture/NTB, 215c Vladimir Stanisic/Alamy Stock Photo/NTB, 216 Svein Nordrum/Samfoto/NTB, 226 Oleksii Karamanov/GettyImages, 227 Adobest/iStock, 228 YiuCheung/iStock, 229 Rudraksh Srivastava/Shutterstock/NTB, 230a Nastasic/iStock, 230b Gradyreese/iStock, 230c alexat25/iStock, 231 Xavierarnau/iStock, 232a Technotr/iStock, 232bibreakstock/Shutterstock/NTB, 233 Ruslanshug/istock, 234 Michelangeloop/iStock, 235 iStock, 236a Fizkes/iStock, 236b akg-images/Pictures From History/NTB, 237 Isabell Höjman/TT/NTB, 238 Cafotodigital/iStock, 239 DrAfter123/iStock

07 MEDIA – 2041 0379

NO - 1470 Vurderingseksemplar MILJØMERKET TRYKKERI