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 ...

More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the ...

These elements, which are the constituents of immense ... unless they are restrained by chemical combination. They then collect around the great centers of attraction constituted by the stars ...

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 ...