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 ...

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 ...

But how could a single chemical element leave such a profound mark on our mental health? Lead is a powerful neurotoxin capable of destroying brain cells and impairing cognitive function. A study ...

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, ...