The chemical symbol for zinc is "Zn." This symbol is derived from the German word "Zink" and is used universally in chemical notations and periodic tables. Zinc is a transition metal, belonging to group 12 of the periodic table, and has an atomic number of 30. It plays a vital role in various biological processes, including immune function, wound healing, and protein synthesis. Additionally, zinc is widely used in industry and manufacturing, particularly for galvanizing steel to prevent rust. Despite being essential for human health, excessive zinc intake can lead to toxicity, emphasizing the need for balanced consumption.