Zinc

Zinc is a chemical element with the symbol Zn and atomic number 30. It is a bluish-white, lustrous metal that is commonly used in various industries and has important biological roles in the human body.

Physical Properties of Zinc

• Atomic Number: 30
• Symbol: Zn
• Atomic Weight: 65.38
• Color: Bluish-white
• Melting Point: 419.5°C
• Boiling Point: 907°C
• Density: 7.14 g/cm³

Uses of Zinc

Zinc has a wide range of industrial applications, including:

• Galvanization of steel to protect against corrosion
• Production of brass and other alloys
• In the form of zinc oxide, used in the production of rubber, paint, and other products
• In batteries, particularly in zinc-carbon and alkaline batteries
• In sunscreen and skin care products as a sunscreen agent

Biological Role of Zinc

Zinc is an essential mineral that plays a crucial role in various biological processes in the human body, including:

• Enzyme function and regulation
• Immune system function
• Wound healing
• DNA synthesis and cell division
• Growth and development during childhood, adolescence, and pregnancy

Study Guide Questions

1. What is the atomic number of zinc?
2. What are the physical properties of zinc?
3. What are some industrial uses of zinc?
4. What is the biological role of zinc in the human body?
5. Why is zinc important for enzyme function?
6. How does zinc contribute to wound healing?