Answers for Key Concept Builder Lesson 3 Nonmetals and Metalloids

Focus on the characteristics of elements found in Group 14 of the periodic table. This includes elements that exhibit both metallic and non-metallic behaviors. Start by categorizing these substances based on their physical and chemical properties. Some of these elements, such as silicon, display distinct semiconducting properties that play a significant role in technology.

To break down their behavior, consider the variation in conductivity and bonding tendencies. For example, while silicon and germanium can conduct electricity under certain conditions, others like carbon (in the form of graphite) demonstrate remarkable conductivity. Identifying these differences will help clarify how these elements interact in various compounds.

Review the basic reactions these elements undergo when exposed to different substances, such as oxygen and halogens. Understanding their reactions will provide insight into their practical applications and how they are utilized in industrial processes.