How to Read the Periodic Table. The Periodic Table Is. A table of all known elements, A useful tool for scientists, And, it arranges elements according to their properties. The Inventor. Created by Dmitri Mendeleev.
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Some periodic tables are color coded to show what elements are metals, nonmetals, and semiconductors.
In general, elements located in the left two-thirds or so of the periodic table are metals. The nonmetals are on the right side of the table.
The dividing line between the metals and nonmetals are elements called semiconductors or metalloids.
The yellow area represents the semiconductors.
The blue area represents the nonmetals.