The periodic table, also called the periodic table of elements, is an organized arrangement of the 118 known chemical elements. The chemical elements are arranged from left to right and top to bottom ...

The periodic table of chemical elements hangs in front of chemistry classrooms worldwide and is an icon for science. Yet much was unknown about its history -- until now. The periodic table reflects ...

The periodic table of elements recently gained four new elements, filling out the seventh row of the educational poster that has long been a staple on chemistry classroom walls. The progress in ...

Looking at the periodic table, most of us have no issues identifying the use of certain elements. Sodium, carbon, nitrogen, oxygen and others are no-brainers but what about the less talked about ...

Yesterday Lawrence Livermore National Laboratory announced the International Union of Pure and Applied Chemistry was naming element 116 on the periodic table livermorium. "Livermorium (atomic symbol ...

You might not realize it, but almost everywhere around you are rare metals from the earth. In your phone, computer, or any other LCD screen, for example, you’ll find a dash of indium, a soft, ...

The iconic chart of elements has served chemistry well for 150 years. But it’s not the only option out there, and scientists are pushing its limits. By Siobhan Roberts When Sir Martyn Poliakoff, a ...

Science classes around the world will be getting a makeover: Four new elements have been added to the period table, completing the seventh row and making those old posters officially dated. The ...

For now, they're known by working names, like ununseptium and ununtrium — two of the four new chemical elements whose discovery has been officially verified. The elements with atomic numbers 113, 115, ...

It says something about Dmitri Mendeleev that he had an easier time keeping track of the number of protons in the nucleus of an atom than the number of brothers and sisters living under his roof. The ...