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18 de may. de 2024 · Metalloid, in chemistry, an imprecise term used to describe a chemical element that forms a simple substance having properties intermediate between those of a typical metal and a typical nonmetal. There is no single property which can be used to unambiguously identify an element as a metalloid.
- The Editors of Encyclopaedia Britannica
- What Is The Composition of metalloids?
- What Is A Metalloid's Most Useful Property?
- Is Metalloid Brittle Or malleable?
Metalloids are fundamental elements, just like all the other elements on the periodic table. Like all elements, they are composed of protons, neutrons, and electrons. For more information, see our metalloidguide.
Metalloids’ most useful property is their semiconducting behavior. They are widely used in electronics. The conductivity of semiconducting metalloids can be enhanced using a technique called doping. Doping consists of the addition of small amounts of impurities to the base semiconductor to change its charge-carrying properties in desirable ways. Ad...
Metalloids are brittle. This means that when deformed, they tend to crack instead of deforming elastically or plastically. Therefore, they cannot be used for structural applications. Metalloids tend to be used as alloying elements in metals, or as semiconductors in electrical devices instead.
14 de sept. de 2019 · Most metalloids have a shiny, metallic appearance but are brittle, unexceptional electrical conductors and display nonmetallic chemical properties. Metalloids have semiconductor properties and form amphoteric oxides. Location on the Periodic Table.
- Anne Marie Helmenstine, Ph.D.
Typical metalloids have a metallic appearance, but they are brittle and only fair conductors of electricity. Chemically, they behave mostly as nonmetals. They can form alloys with metals. Most of their other physical properties and chemical properties are intermediate in nature. Metalloids are usually too brittle to have any ...
The physical properties of metalloids tend to be metallic, but their chemical properties tend to be non-metallic. The oxidation number of an element in this group can range from +5 to -2, depending on the group in which it is located.
The elements boron, silicon, germanium, arsenic, antimony, and tellurium separate the metals from the nonmetals in the periodic table. These elements, called metalloids or sometimes semimetals, exhibit properties characteristic of both metals and nonmetals.
They are brittle, and easily shattered. Metalloids can conduct electricity, but not as well as metals. Chemically, they act more like nonmetals, easily forming anions, having multiple oxidation states, and forming covalent bonds. Their ionization energies and electronegativities are in between the values of metals and nonmetals.
