The periodic table
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Periodic Table of Elements Elements Science has come along way since Aristotles theory of Air, Water, Fire, and Earth. Scientists have identified 90.
Periodic Table of Elements. gold silver helium oxygen mercury hydrogen sodium nitrogen niobium neodymium chlorine carbon.
Periodic Table of Elements. Mendeleev In 1869, Dmitri Ivanovitch Mendeléev created the first accepted version of the periodic table. He grouped elements.
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Periodic Table Science
Elements and periodic table
Periodic table
The Periodic Table
