Welcome to the sleepy Swedish town of Ytterby. I hope you like it, because we’ll be spending an awful lot of time there later in the series.
Rubidium is more explosive than the alkali metals above it on the table, but it’s much more interesting when it’s standing almost perfectly still.
Meet one of the periodic table’s lesser-known liquid metals — and beware some dangerous competition from a few felonious element collectors.
Today’s element gets called “lazy,” but that’s actually a terrible misnomer.