Lead (chemical element)

Lead is a heavy, dense metal with the chemical symbol Pb. It has been used by humans for thousands of years, primarily in batteries, plumbing, and radiation shielding. While lead is valuable for its properties, it is also toxic and can cause serious health issues, especially in children. Exposure can lead to developmental problems and other health risks. Because of these dangers, many uses of lead have been regulated or phased out in recent years. Understanding lead's benefits and risks is crucial for public health and safety.