What are metalloids? Give two examples. Metals are malleable. What does it mean?

Metalloids, also known as semimetals, are a group of chemical elements that exhibit properties that are intermediate between metals and nonmetals. They are often found in a diagonal region on the periodic table, separating metals on the left from nonmetals on the right. Metalloids share some characteristics with both metals and nonmetals, making them unique in their properties. Here are a few key characteristics of metalloids:

Electrical conductivity: Metalloids can conduct electricity to some extent, but not as effectively as metals. Their electrical conductivity lies between that of metals and nonmetals.

Thermal conductivity: Similar to electrical conductivity, metalloids have intermediate thermal conductivity compared to metals and nonmetals.

Physical properties: Metalloids can have properties like luster and are often solid at room temperature, but they are less malleable and ductile than metals.

Chemical properties: Metalloids can exhibit a range of chemical behaviors. For example, they may form both metallic and covalent bonds, which contributes to their intermediate properties.

Two examples of metalloids are:

Silicon (Si): Silicon is a commonly known metalloid and is a crucial element in electronics and semiconductors. It has semiconducting properties and is widely used in the production of computer chips and solar cells.

Germanium (Ge): Germanium is another metalloid that is used in electronics, particularly in the past in transistors and other semiconductor devices. It has electrical conductivity properties that fall between those of metals and nonmetals.

Regarding your second question, the term "malleable" refers to a property of metals. When a material is described as malleable, it means that it can be easily hammered, pressed, or rolled into thin sheets or shapes without breaking or shattering. This property is a result of the metallic bonding in metals, which allows the atoms to slide past one another when force is applied. Because of their malleability, metals can be easily shaped and formed into various useful objects, making them valuable materials for a wide range of applications, from construction to manufacturing.