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Where are metalloids located on the periodic table?

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Metalloids, also referred to as semimetals, are located near the center of the p-block of the periodic table.12

Because the term is imprecise, there is no single, universally accepted list of these elements. However, it is generally applied to six to nine elements, including boron, silicon, germanium, arsenic, antimony, and tellurium. Some classifications may also include bismuth, polonium, and astatine.12

These elements are characterized by having properties intermediate between those of typical metals and nonmetals, and they cannot be identified by any single, unambiguous property.12