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this term is no longer commonly used by chemists, however, it refers to elements that exhibit some properties of metals and nonmetals. These elements tend to be semiconductors. Silicon is an extremely important example of these elements. Without the semiconductive properties silicon you would not be reading this text right now as most microchips and microprocessors are made with silicon and without these processors computers as we now know them would not exist.Definition for Metalloids :Elements with properties intermediate between metals and nonmetals: B, Al, Si, Ge, As, Sb, Te, Po, and At.
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