Answer :
Silicon is classified as a 3) metalloid. It exhibits properties that are intermediate between metals and nonmetals. Silicon is shiny and brittle, typical of metalloids, and can be made a semiconductor under special conditions.
Silicon is classified as a metalloid. In the periodic table, silicon is found in group 14 and exhibits properties that are intermediate between metals and nonmetals. Silicon is shiny and silvery but does not conduct electricity or heat very well under normal conditions, which are typical characteristics of metalloids. Furthermore, it is brittle like many nonmetals but can be transformed into a semiconductor under special conditions, distinguishing it from both metals and nonmetals.
Final answer:
Silicon is classified as a metalloid because it exhibits properties intermediate between metals and nonmetals. It has a shiny appearance like a metal but is brittle and does not conduct heat or electricity well, like a nonmetal. This combination of properties makes silicon an important material in electronics.
Explanation:
Is Silicon a metal, nonmetal, or metalloid? Silicon is a metalloid. Metalloids are elements with properties that are intermediate between those of metals and non-metals. Silicon has luster, which is a characteristic of metals, suggesting it has a shiny and silvery appearance. However, it does not conduct electricity or heat well, which is more like a nonmetal. Additionally, unlike the typical malleability and ductility of metals, silicon is brittle, which is again characteristic of nonmetals.
In the context of electronics, silicon's semiconductor properties make it extremely useful. Semiconductors have electrical conductivity that falls between that of a conductor (like a metal) and an insulator (like a nonmetal), which is crucial for the function of electronic devices. This is why silicon is extensively used in computer chips and other electronics. In conclusion, silicon is considered a metalloid because it exhibits both metallic and nonmetallic properties, making it unique and valuable for various applications.
