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Periodic Table

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There are 7 periods and 18 groups. The periodic table of the chemical elements (also periodic table of the elements or just the periodic table) is a tabular display of the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869[1], who intended the table to illustrate recurring ("periodic") trends in the properties of the elements. The layout of the table has been ...

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Keywords: periodic table with real elements, periodic table with oxidation numbers, periodic table quiz, periodic table pdf, periodic table with atomic mass, periodic table groups, periodic table online, periodic table with names

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