: The Periodic Table

Setting the Table - Visualizations 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 periodic table The periodic table is arranged by atomic weight and valence electrons These variables allowed Mendeleev to place each element in a certain row

pl table In the periodic table, shown in Figure 1, the elements are organized and displayed according to their atomic number and are arranged in a series of rows and