This week's element is francium, which has the symbol Fr and the atomic number 87. Francium is a highly radioactive alkali metal that is vanishingly rare in the wild. It is the most unstable naturally ...

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 ...

Benjamin holds a Master's degree in anthropology from University College London and has previously worked in the fields of psychedelic neuroscience and mental health. Benjamin holds a Master's degree ...

The periodic table, which arranges elements based on chemical behavior and physical properties, is a triumph of science. Yet the first table, developed in the late 1860s, was riddled with gaps created ...