Zinc is a bluish-white metal, symbolized as Zn, with versatile applications in various fields. It is primarily used for galvanization, protecting iron and steel from rust. Zinc is also a key component in alloys like brass and is essential in manufacturing batteries, die-cast products, and paints. Biologically, zinc is crucial for human health, supporting immune function, enzyme activity, and wound healing. With its protective oxide layer, zinc is durable and resistant to corrosion, making it indispensable in industrial and everyday applications.