Metalloids are best described as

Metalloids are best described as

• A. Metals That Conduct Electricity Well
• B. Non-Metals That Do Not Conduct Electricity
• C. Semi-Conductors Like Silicon
• D. Gases at Room Temperature

Answer: (C)

Metalloids have properties between metals and nonmetals, so they behave as semiconductors. They’re solid at room temperature and their ability to conduct electricity is intermediate—stronger than most nonmetals but weaker than metals. Importantly, their conductivity can be controlled by temperature or by adding impurities (a process called doping), which is why materials like silicon are essential in electronics. Describing metalloids as metals that conduct electricity well would be inaccurate, since metals are typically much more conductive. Describing them as non-metals that do not conduct electricity would ignore their semiconducting behavior. Gases at room temperature are not relevant here, since metalloids are solids. So the best description is that metalloids are semiconductors like silicon.

Metalloids have properties between metals and nonmetals, so they behave as semiconductors. They’re solid at room temperature and their ability to conduct electricity is intermediate—stronger than most nonmetals but weaker than metals. Importantly, their conductivity can be controlled by temperature or by adding impurities (a process called doping), which is why materials like silicon are essential in electronics. Describing metalloids as metals that conduct electricity well would be inaccurate, since metals are typically much more conductive. Describing them as non-metals that do not conduct electricity would ignore their semiconducting behavior. Gases at room temperature are not relevant here, since metalloids are solids. So the best description is that metalloids are semiconductors like silicon.