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
- What is the atomic number of zinc?
- What are the physical properties of zinc?
- What are some industrial uses of zinc?
- What is the biological role of zinc in the human body?
- Why is zinc important for enzyme function?
- How does zinc contribute to wound healing?
