Zinc

Zinc is a chemical element with the symbol Zn and atomic number 30. It is a bluish-white metal that is commonly used in various applications due to its unique properties.

Properties of Zinc:

• Physical Properties: Zinc is a relatively brittle metal with a crystalline structure. It has a melting point of 419.5°C and a boiling point of 907°C.
• Chemical Properties: Zinc is a moderately reactive metal. It readily forms a protective layer of zinc oxide when exposed to air, which helps prevent further corrosion.
• Common Uses: Zinc is widely used in the production of alloys, such as brass and bronze. It is also used in galvanizing other metals to protect them from corrosion.

Role of Zinc in Biology:

Zinc is an essential trace element for all living organisms. It plays a critical role in various biological processes, including enzyme function, immune system function, and cell division.

Study Guide:

1. What is the chemical symbol for zinc?
2. What are the physical properties of zinc?
3. How does zinc protect other metals from corrosion?
4. Why is zinc important for biological systems?
5. Give examples of common uses of zinc.

Fun Fact:

Zinc is also present in various foods, such as oysters, red meat, poultry, beans, and nuts, and is important for maintaining good health.