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How many chemical elements are arranged in the periodic table?
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periodic table
Modern version of the periodic table of the elements. To learn an element's name, atomic number, electron configuration, atomic weight, and more, select one from the table.
There are 118 chemical elements currently arranged in the periodic table.2
These elements are organized in order of increasing atomic number, which corresponds to the number of protons found in the nucleus of each atom. The sequence begins with hydrogen, which has an atomic number of 1, and concludes with oganesson, which has an atomic number of 118.123