What are elements that I have some properties of metals and some properties of nonmetals col what are elements that are some properties of metals and some properties of nonmetals called?

Elements that exhibit properties of both metals and nonmetals are called metalloids. Metalloids typically have a combination of metallic luster and electrical conductivity, along with nonmetallic characteristics such as brittleness. Common examples of metalloids include silicon, germanium, and arsenic. These elements are often used in electronics and other applications where both metallic and nonmetallic properties are advantageous.