<Tab/>The periodic table was an evolution in the history of chemistry. It aided scientists to predict elements that existed but not yet found. It helped people to interpret and understand the behavior and physical properties of various elements. The periodic table was developed and improved by scientists throughout the century as new discoveries were found.
In the early eighteen hundred's, Dobereiner discovered that elements that are similar in appearance and behavior also have similar atomic masses. At the same time, Dechancourtois made a cylindrical table of elements to sho…