The Universe came into being 13.8 billion years ago. At this point, all of existence could be summed up as an endless soup of particles frothing at temperatures many times hotter than the Sun. It was chaos. Fortunately, as the Universe expanded, everything began to cool and the particles stabilised. It was around this time, as disorder gave way to order, that the elements were born. Fast forward to June 2016 and the periodic table of elements was finally completed with the discovery and addition of four new elements. In 'Elemental' he tells the story of the periodic table from its ancient Greek roots, when you could count the number of elements humans were aware of on one hand, to the modern alchemists of the twentieth and twenty-first centuries, who have used nuclear chemistry and physics to generate new elements and complete the periodic table.