Which term describes elements that exhibit properties of both metals and nonmetals?

The term that describes elements exhibiting properties of both metals and nonmetals is metalloids. Metalloids typically have a mixture of characteristics from both categories, making them versatile in their physical and chemical properties. For instance, they often have metallic luster like metals but can be brittle like nonmetals. Additionally, metalloids can conduct electricity better than nonmetals but not as well as metals, making them useful in semiconductors and other applications.

This distinct classification helps in understanding the behavior of these elements in various chemical reactions and their role in different materials, especially in technology and manufacturing.