Beyond the fact that the radio-elements were in present course of evolution, it added little to the conceptions of chemistry. But in the second and more recent phase—concerned with the chemical ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

It took centuries to grasp the idea of chemical elements as being the bricks of the universe and that out of these building stones all matter is composed. Number of Elements.—From many facts it ...

Iranian cargo ships allegedly carrying chemicals to make missile propellent are setting sail from China to deliver the ...

That pun is based on the fact that the main building blocks in the branch of science are chemical elements, pure substances ...

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 ...

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.