Interactive Periodic Table of the Elements, in Pictures and Words

periodic table of elements  Groups of the Periodic table · Alkali metals: The alkali metals make up most of Group 1, the table's first column · Alkaline-earth metals: The number of elements in a period increases as one moves down the periodic table because as the energy level of the atom increases, the number of energy sub-

Page 1 PERIODIC TABLE OF ELEMENTS  Features · This periodic table of elements contains 83 real element samples, and some elements are even more expensive than gold · 【High-

The modern periodic table arranges the elements by their atomic numbers and periodic properties Several scientists worked over almost a century The interactive periodic table of elements