Semi-Metal Definition

Germanium, a semi-metal, has metallic luster but is a semiconductor rather than a conductor.
Germanium, a semi-metal, has metallic luster but is a semiconductor rather than a conductor. ALFRED PASIEKA/SCIENCE PHOTO LIBRARY / Getty Images

Semi-Metal Definition: A semi-metal is an element that contains a partially filled p orbital.

The semi-metal group consists of hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur, and selenium.

Also Known As: metalloid

Alternate Spellings: semimetal

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Helmenstine, Anne Marie, Ph.D. "Semi-Metal Definition." ThoughtCo, Jul. 26, 2017, thoughtco.com/definition-of-semi-metal-605649. Helmenstine, Anne Marie, Ph.D. (2017, July 26). Semi-Metal Definition. Retrieved from https://www.thoughtco.com/definition-of-semi-metal-605649 Helmenstine, Anne Marie, Ph.D. "Semi-Metal Definition." ThoughtCo. https://www.thoughtco.com/definition-of-semi-metal-605649 (accessed May 26, 2018).