7) An alloy is a solid combination of atoms of two or more metals.
8) An example of two alloys I use regularly are bronze and steel.
9) A nonmetal that is a component of both steel and stainless steel is carbon.
10) Ni3Al, is a low-density, strong metallic alloy of nickel and aluminum used as a component of jet aircraft engines.
11) Metallloids are mostly semi-conductors and are located on the right of the periodic table.
12) Three elements commonly used for doping semiconductors are phosphorus, arsenic, and aluminum.
13) The primary use of the products of semiconductor technology is for computers and other electronics.
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