The Disappearing Spoon by Sam Kean
My son, studying A level Chemistry, borrowed this from his school library, then I read it after him. The sub title is 'and other true tales from the Periodic Table'. It's a lively romp through the periodic table, telling the stories of how elements were discovered and named, and the stories of the characters who found them.
There are all sorts of fascinating facts in here- and the science covered is much more than just chemistry. I thoroughly enjoyed it though can't pretend to have understood every word. If you like reading about science I'd recommend this one.
Incidently the disappearing spoon of the title is one made from gallium. It looks just like aluminium, but melts at just over room temperature, so the minute you stir your tea with it it'll disappear.