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 ...

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 ...

Chemistry is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy.

The story of caesium’s discovery concerns three men – two men who worked in tandem to announce their discovery on May 10, 1860, and a third who first successfully isolated the element a couple ...

ICSE Class 9th Chemistry Syllabus 2024-2025: Get here detailed ICSE Board Class 9 Chemistry Syllabus chapter-wise, marking scheme, weightage, paper pattern and Download PDF.

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 ...

The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius. Many scientists worked on the ...