Q:

What are examples of metalloids?

A:

Examples of metalloids are boron, germanium, arsenic, silicon, tellurium, polonium and antimony. These elements exist in the realm between metals and non-metals and can have properties of both.

Scientists agree that "metalloid" is a vague term, and even an element usually thought of as a true metal, such as aluminum, might be classified as a metalloid.

Often metalloids have the luster of metal but are brittle in a way that real metals are not. They can generally be alloyed with metals and are useful as semiconductors and flame retardants. They're also used in fireworks, signal lights and flares.

Some metalloids, taken in trace amounts, support good health. These include silicon, boron, and even arsenic in incredibly tiny amounts, though arsenic in any appreciable quantity is toxic. Boron and silicon are used as insecticides, and both have medical applications. Boron in the form of boric acid can treat infections and silicone gel treats burns.

Most metalloid oxides can be used to make glass. Boron trioxide is used to make glass ovenware, while silicon dioxide has long been used to make regular glass.

Silicon is famous as a semiconductor. At first, germanium was used as a semiconductor till silicon proved less expensive, easier to work with and better able to tolerate high temperatures.

Learn More

Related Questions

  • Q:

    What are some examples of decomposers?

    A:

    Decomposers include certain types of bacteria, worms, slugs, snails and fungi. All of these organisms break down or eat dead or decomposing organisms to help carry out the process of decomposition. They are the last step in the food chain, which recycles nutrients and breaks down wastes and organic matter in the ecosystem.

    Full Answer >
    Filed Under:
  • Q:

    What are examples of inorganic substances?

    A:

    Examples of inorganic substances include all metals, ammonia, hydrogen sulfide, chlorine, salt, minerals such as gypsum and generally all compounds that do not contain carbon-hydrogen bonds. By definition, an inorganic substance is a substance that does not contain carbon.

    Full Answer >
    Filed Under:
  • Q:

    What are some examples of being proactive?

    A:

    Examples of being proactive are packing a briefcase the night before a meeting, reducing the risk of crime by hiring additional police officers and doing laundry before all the clothes are dirty. Proactive means acting in expectation of future needs or problems.

    Full Answer >
    Filed Under:
  • Q:

    What are examples of being independent?

    A:

    Examples of being independent include being able to think for oneself, earning money to take care of one's basic needs, tending to one's physical health and overall wellness and knowing how to stay safe. Having one's own mode of transportation is another example of being independent.

    Full Answer >
    Filed Under:

Explore