Elements Commonly Recognized As Metalloids
- This section presents brief sketches of the physical and chemical properties of the applicable elements—in their most thermodynamIcally stable forms under ambient conditions—followed by information about their typical (shared) uses as metalloids. For complete profiles, including occurrence, production, specific uses, biological role and precautions, see the main article for each element.
Boron, silicon, germanium, arsenic, antimony and tellurium are commonly classified as metalloids. One or more from among selenium, polonium or astatine are sometimes added to the list. Boron is sometimes excluded from the list, by itself or together with silicon. Tellurium is sometimes not regarded as a metalloid. The inclusion of antimony, polonium and astatine as metalloids has also been questioned.
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