Browsing: Periodic Table

The Periodic Table is a systematic arrangement of chemical elements, organized by increasing atomic number and grouped by shared properties. First devised by Dmitri Mendeleev in 1869, the table categorizes elements based on their atomic structure, particularly the number of protons in their nucleus, and recurring chemical behavior. Elements are arranged in rows (periods) and columns (groups), with elements in the same group having similar chemical properties due to the configuration of their outer electron shells. The Periodic Table is a fundamental tool in chemistry and the sciences, helping scientists predict the behavior of elements, their compounds, and their interactions. It is continually updated as new elements are discovered or synthesized.