Dmitri Mendeleev was the creator of the Periodic Table. In the Periodic Table there 18 groups and 118 elements discovered in planet earth right now. Periodic .The groups are: Group 1 Alkalis Metal, Group 2 Alkaline Earth Metals, Group 3-12 Transitional Metals, 13&14 Unnamed, Group 15 Pnictogen, Group 16 Chalcogen, Group 17 Halogens, Group 18 Noble gases.
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