7. An alloy is a solid combination of atoms of two or more elements.
8. Steel and 14-karat gold.
9. Carbon is a component of both steel and stainless steel.
10.
Nickel aluminide
Formula: Ni3Al
Use: component of jet aircraft engines
Physical property: low density, strong, metallic
11. Elements that behave as semiconductors are located on the right side of the periodic table, in-between metals and nonmetals, the metalloids.
12. Three elements commonly used for doping semiconductors are phosphorus, arsenic, and aluminum.
13. The primary use of the products of semiconductor technology is to allow computers to process digital information.
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