Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

What do magnets, smartphones and medical imaging devices have in common? They all depend on rare earth elements called lanthanides, which are vital for modern technology. Yet, separating these ...

Highly reducing or oxidizing photocatalysts are a fundamental challenge in photochemistry. Only a few transition metal complexes with Earth-abundant metal ions have so far advanced to excited state ...

In ancient Greek mythology, the Titan Prometheus was bound to a rock as punishment for stealing fire from the gods and giving it to humans. The rare radioactive element promethium was named after him ...