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Is boron a metal or nonmetal?

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Boron is neither a metal nor a nonmetal; instead, it is classified as a metalloid or a semimetal. Boron is the chemical element with the symbol B and atomic number 5. Its molecular weight is 10.81 grams per mole, and its melting point is 2076 degrees Celsius.

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Is boron a metal or nonmetal?
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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. Other chemical elements commonly classified as metalloids include silicon, germanium, arsenic, antimony and tellurium.

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Related Questions

  • Q:

    What are some interesting facts about boron?

    A:

    Boron's symbol is B, it is classified as a metalloid and it is a solid at room temperature. Its atomic number is 5 and its atomic weight is 10.81.

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  • Q:

    Is silicon a metal?

    A:

    Silicon is a metalloid. This means it has some qualities of a metal but lacks others. For example, though a lump of silicon has the luster of a metal, it's also brittle. Silicon can also be alloyed with metals like copper and aluminum to make them stronger.

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  • Q:

    Is silicon a metal, a nonmetal or a metalloid?

    A:

    Silicon is a metalloid, a semimetallic element that is neither a metal nor a nonmetal but has some of the properties or characteristics of the two. A semi-metal in the periodic table, silicon is one of the elements that can't be found in nature in its elemental form. It is also one of the most common elements in nature, accounting for about 28 percent of the earth's crust by mass.

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  • Q:

    How flammable is boron?

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    Many compounds that contain boron are highly flammable, but the free element is not found in the natural world in a pure form. Most often, the element is found as the compound borax. Most boron compounds that feature hydrogen are very flammable.

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