The History of the Periodic Ta

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…inconsistencies that existed in Mendeleev's arrangement. The elements are arranged in vertical columns known as Groups. The elements in each group have consistently high or low values for certain properties. The horizontal rows of elements are referred to as "periods" The ideas of Mendeleev have led to huge developments in the Periodic Table. His ideas on producing the table have made it easy to produce new versions of the table when new elements are discovered.