Is boron a metalloid?

Boron is not a metal, but rather it is a metalloid. Metalloids share qualities like both metals and non-metals. Similar to metal, boron is a solid with a metal gloss and high strength. Like a non-metal, boron has a low concreteness and forms covalent bonds with other non-metallic substances. read more

A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them. There is neither a standard definition of a metalloid nor complete agreement on the elements appropriately classified as such. read more

Crystal boron is a dark substance with a hardness rivaling that of diamond. As a metalloid, boron's physical and chemical properties are between those of metals and nonmetals. It behaves as a nonmetal in reaction with sodium and a metal when combined with fluorine. read more

Elemental boron is a metalloid that is found in small amounts in meteoroids but chemically uncombined boron is not otherwise found naturally on Earth. Industrially, very pure boron is produced with difficulty because of refractory contamination by carbon or other elements. read more