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Explore the comprehensive list of 117 chemical elements known to man, including 92 naturally occurring elements and others synthesized in laboratories. Created in 1869 by Dmitry Mendeleev, the Periodic Table organizes elements based on atomic number, groups, periods, electron characteristics, and reactive properties.
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THE PERIODIC TABLE OF ELEMENTS CHEMICALELEMENTS
117 CHEMICAL ELEMENTS KNOW TO MAN 92 FOUND NATURALLY THE OTHERS MADE BY SCIENTISTS IN A LABORATORY
1869 DmitryMendelevcreatedThe PeriodicTable of Elements Organisedtable of all the knownelements, ordering by the ATOMIC NUMBER
GROUPS PERIODS
GROUPS • ELEMENTS WITH SIMILAR ELECTRON CHARACTERISTICS • ELEMENTS WITH SIMILAR REACTIVE PROPERTIES