A Visual Encyclopedia of the Periodic Table

Ne He Ar Kr Xe Rn Og Atomic structure Apart from a helium (He) atom that has two electrons in its outer shell, all other element ...

190 Noble Gases Uses Helium He 2 Helium is the second lightest element after hydrogen. This transparent gas was first discovered ...

191 Noble Gases Helium has the lowest melting point of any element. collected from underground reservoirs or is found mixed in n ...

Nebula This glowing nebula (cloud of gas and dust) is the Crescent Nebula. It is so vast that our entire Solar System would fit ...

Helium makes WR 136 hot and bright. The star once burned using hydrogen, like our Sun. Hydrogen atoms smashed together in the st ...

194 Noble Gases P u re n eo n^ in a g la ss^ sph ere Neon Ne 10 Neon is a rare element: it makes up just 0.001 per cent of our a ...

195 Noble Gases P u re a rg on in a gl as s^ s phe re Argon Ar 18 Uses Argon is the third most abundant gas in the atmosphere, a ...

196 Noble Gases Krypton Kr 36 Forms Uses 36 36 48 State: Gas Discovery: 1898 The word krypton means the “hidden one” in Greek. T ...

197 Noble Gases Xenon Xe 54 Forms Uses 54 54 77 State: Gas Discovery: 1898 Xenon is so rare that there is only one atom of this ...

198 Noble Gases Rn 86 Radon 86 86 136 State: Discovery: Gas 1900 Radon is the only natural radioactive noble gas. This element i ...

199 Noble Gases Oganesson Og 118 The heaviest element yet made is oganesson. Scientists think it would be solid at room temperat ...

200 Glossary Acid A compound that contains hydrogen, and releases ions of hydrogen when it is dissolved in water. These ions mak ...

201 Glossary Hardness A measure of how easy it is to scratch or cut a substance with another substance. Hydroxide A type of comp ...

202 Glossary Laser A beam of light with a single wavelength, in which the waves are all perfectly in step. Lasers are used in el ...

203 Glossary Period A set of elements in a row in the periodic table. Each atom of the elements in the first period have one ele ...

204 Index Index Page numbers in bold indicate a main entry. A acid rain 169 actinides 119 actinium 119, 120 , 121 aerogel 147 ae ...

205 Death Valley, USA 130 dental equipment 25, 76, 94 diamonds 142, 144–145 diaspore 136 diving clothing 183 DNA 159 dolomite 40 ...

206 IndexK kernite 130 Kirchhoff, Gustav 34 kohl 161 krypton 188, 196 L Lamy, Claude-Auguste 138 lanthanides 109 lanthanum 109, ...

207 rhodium 81 rhodochrosite 58 RIKEN Nuclear Research Centre, Japan 139 rock salt 29 rockets 21, 167 Röntgen, Wilhelm 106 roent ...

208 Acknowledgements ACKNOWLEDGEMENTS The publisher would like to thank the following people for their help with making the book ...