Zn

Zn, with the atomic number 30, is a chemical element in the periodic table. It is classified as a transition metal and is known for its distinctive blue-white color when in its molten state. Zinc is relatively abundant in the Earth's crust, making up about 0.007% of the crust by mass. It is primarily obtained through mining and is a crucial component in various industrial applications.

Zinc has several important properties. It is a good conductor of electricity and heat, and it is also resistant to corrosion, which makes it useful in galvanizing steel to prevent rust. Zinc is also essential for biological processes, serving as a cofactor for many enzymes and playing a role in various metabolic pathways. It is particularly important for human health, with zinc deficiency linked to numerous health issues, including impaired immune function and growth retardation.

In industry, zinc is used in a wide range of applications. It is a key component in alloys, such as brass and bronze, and is used in the production of batteries, pigments, and lubricants. Zinc oxide is a significant compound derived from zinc, used in cosmetics, rubber, and as a white pigment in paints. Additionally, zinc is used in the galvanization of steel to protect it from corrosion.

Zinc has two stable isotopes, zinc-64 and zinc-66, and several radioactive isotopes. The most stable radioactive isotope is zinc-65, with a half-life of approximately 244 days. Zinc's chemical symbol, Zn, comes from its Latin name, "zincum," which means "stone" or "ore."