Explore the concept of chemical elements and the definition of an element in science with this guide for KS3 chemistry students aged 11-14 from BBC Bitesize.

A chemical element is one of those squares on the periodic table that adorns many a classroom wall. Sure. But what is an element really? It is a more subtle question that you might realise. To get ...

The chemistry of promethium, a rare radioactive element, has been clouded in mystery, owing to its scarcity and the difficulties involved in working with it. The synthesis of a complex of ...

Is it possible to make an element zero? Does it already exist? The periodic table contains a wide array of elements, numbered from one (hydrogen) to 118 (oganesson), with each number representing ...

They are the smallest unit of an element that still retains its properties. Skip to main content. Open menu Close ... Learn more about the history of atomic chemistry in this video from Khan Academy.

It was declared a success in 2012, and four years later, the International Union of Pure and Applied Chemistry – the world authority on chemistry – officially recognized Element 117 as part of ...