IF a chemist were to purify lead from silver ... of the latter and the recognition that the so-called chemical elements are in reality heterotopes, or substances occupying different places ...

After a breakdown in US-Russia relations, Riken finds itself ahead of its rivals. And Lawrence Berkeley National Laboratory ...

But sometimes the symbol comes from a name for the element that is not an English word. For example, Lead is a chemical element with the symbol Pb (from the Latin for lead, plumbum).W stands for ...

Pic: DRI/Jessi LeMay Researchers used modern studies of lead exposure to determine how much of the chemical element would have likely ended up in the bloodstreams of Roman people and the impacts ...

Uranium (chemical symbol U) is a naturally occurring radioactive element. In its pure form it is a silver-coloured heavy metal, similar to lead, cadmium and tungsten. Like tungsten it is very dense, ...