Take a look at the first column of the periodic table. The elements in this group include some of the most common and useful ones on the planet - and they probably all wish they weren’t associated ...

Francium — the 87th element on the periodic table — is a naturally occurring, but incredibly rare, radioactive element. It forms and decays extremely quickly, so it has no practical uses, and it is ...

One of the most remarkable things about element 87 is the number of times that people have claimed to have discovered it after it was first predicted by Mendeleev in 1871 and given the provisional ...