Interactive Periodic Table of Elements

periodic table  One can trace today's controversies over how the periodic table should look to the discovery of quantum mechanics and atomic numbers Mendeleev VIDEOS A lesson about every single element on the periodic table Created by the Periodic Videos team using the TED-Ed platform

At first, Mendeleev argued that helium could not exist; it had no place on the periodic table But, around the turn of the twentieth century, View our new Interactive Periodic Table! · 1) Hydrogen · 2) Helium · 3) Lithium · 4) Beryllium · 5) Boron · 6) Carbon · 7) Nitrogen · 8) Oxygen

Features · This periodic table of elements contains 83 real element samples, and some elements are even more expensive than gold · 【High- Bohr's table added elements discovered since 1869, but it was still, in essence, the periodic arrangement that Mendeleev had discovered Without