Silicon doesn’t act like you might expect. At room temp, it barely conducts electricity—but heat it up, and suddenly it turns on! 🔥⚡ The reason? It all comes down to the bandgap. In metals like copper, electrons flow freely because their energy bands overlap. But silicon has a small energy gap between its valence and conduction bands. When you add heat, electrons get the boost they need to jump that gap—and that’s what makes semiconductors so powerful in tech! #chemteacherphil #silicon #semiconductor #STEM