Metalloid
| Also Known As | Semimetal, semiconductor element, metalloid element |
|---|
What is Metalloid?
An element with properties intermediate between metals and nonmetals, also called a semimetal. Metalloids include boron, silicon, germanium, arsenic, antimony, tellurium, and polonium. Silicon and germanium are important semiconductors. Their electrical conductivity is intermediate.
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
An element with properties intermediate between metals and nonmetals, also called a semimetal. Metalloids include boron, silicon, germanium, arsenic, antimony, tellurium, and polonium. Silicon and germanium are important semiconductors. Their electrical conductivity is intermediate.
Metalloids are critical in electronics: silicon and germanium are the primary semiconductor materials for transistors, solar cells, and integrated circuits. Arsenic and phosphorus are used as dopants in silicon semiconductors. Boron is used in nuclear reactor control rods and high-performance alloys…
Many metalloids are toxic: arsenic is a potent carcinogen (skin, lung, bladder cancer from chronic exposure); antimony compounds are irritants; selenium is an essential trace element but toxic at higher doses. Handle all metalloid compounds with appropriate PPE and ventilation. Silicon itself is gen…