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Metalloids are chemical elements that are not quite metal, then again not quite nonmetal. Metalloids are a bit of both. For example, though metalloids possess some conductive properties (and conductivity is a metallic property), this property is small compared to the conductive properties of true metals. Boron, silicon and germanium are a few metalloids. You can read more about metalloids in http://en.wikipedia.org/wiki/Metalloids
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Metalloids are the elements found along the stair-step line that distinguishes metals from non-metals. This line is drawn from between Boron and Aluminum to the border between Polonium and Astatine. The only exception to this is Aluminum, which is classified under "Other Metals". Metalloids have properties of both metals and non-metals. Some of the metalloids, such as silicon and germanium, are semi-conductors. This means that they can carry an electrical charge under special conditions. This property makes metalloids useful in computers and calculators The Metalloids are: * Boron * Silicon * Germanium * Arsenic * Antimony * Tellurium * Polonium http://www.chemicalelements.com/groups/metalloids.html
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