History of the Periodic Table - Chemistry LibreTexts.
The periodic table of the chemical elements is a list of known chemical elements.In the table, the elements are placed in the order of their atomic numbers starting with the lowest number of one, hydrogen. The atomic number of an element is the same as the number of protons in that particular nucleus of an atom.In the periodic table the elements are arranged into periods and groups.
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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 is an arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations and recurring chemical properties.Elements are presented in order of increasing atomic number. The standard form of the table consists of a grid with rows called periods and columns called groups. The history of the periodic table reflects over two centuries.
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This fundamental discovery was of great importance for establishing the physical meaning of the periodic table and the atomic number, as well as for validating the concept of planetary atom. Moseley’s discovery will always be one of the ten most brilliant in design, elegance and performance information content in the history of science (Ellis, 2013).