But the periodic table didn’t actually start with Mendeleev. Many had tinkered with arranging the elements. Decades before, chemist John Dalton tried to create a table as well as some rather ...

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 ...

Chemistry class, for most, hearkens back to images of test tubes, glass beakers and bubbling concoctions. It does not, however — at least not unless accompanied by an audible sigh — immediately draw ...

Scientists have started a new periodic table for quantum dots, which they refer to as “artificial atoms.” Quantum dots are nano-sized particles that are made of semiconducting materials. Researchers ...

Physicists develop a 'nuclear periodic table'. While the traditional table is based on the behavior of electrons in an atom, this new table is based on the protons in the nucleus. Protons have ...

Chemistry teachers recently had to update their classroom décor, with the announcement that scientists have confirmed the discovery of four new elements on the periodic table. The as-yet unnamed ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Every field of science has its favorite anniversary. For physics, it’s Newton’s Principia of 1687, the book that introduced the laws of motion and gravity. Biology celebrates Darwin’s On the Origin of ...

This illustration shows a typewriter with the keys depicted as the periodic table. Hands are typing on it, and the sheet of paper coming out of it shows the words "Tales from the table." Credit: Chris ...

Periodic table is an arrangement of all known elements organized on the basis of structure and atomic number. Moving across the periodic table, one finds an increase in the number of protons. Moving ...

The discovery of element 117 filled the last remaining gap in the periodic table as we know it. But even as it is being completed, the table may be losing its power In 2010 researchers in Russia ...