Players read questions about energy levels and score points by picking the correct element as the answer. Electrons are in regions around the ... After the second level has 8 electrons, the next ...

Watch this video to find out more information on the periodic table close periodic tableA table which lists all of the chemical elements and arranges them in a way that is useful. It allows us to ...

One of the proud achievements of Oak Ridge National Laboratory is the discovery of three elements either by its own staff or in collaboration with other institutions in the United States and Russia.