By Team ClassWork 🔹 Basic Information
- Element Name: Zinc
- Discovered By: Known since ancient times (isolated by Andreas Sigismund Marggraf in 1746)
- Year of Isolation: 1746
- Category: Transition Metal
- Group: 12 (Group IIB – Transition Metals)
- State at Room Temperature: Solid (bluish-white metal) ⚙️
Zinc is a shiny, bluish-white metal that’s strong, non-toxic, and plays a big role in industry and biology. It’s essential for both machines and the human body! 💪🔩
🔸 Chemical Properties
- Chemical Symbol: Zn
- Atomic Number: 30
- Atomic Mass: ~65.38 u
- Valency: 2
- Electronic Configuration: [Ar] 3d¹⁰ 4s²
Zinc is fairly reactive, especially with acids. It forms zinc oxide (ZnO) when it reacts with oxygen and creates hydrogen gas when reacting with acids.
📘 Basic Things to Know
Zinc is essential for life — it helps enzymes work, boosts immunity, and supports growth. It’s also widely used in protecting metals from rust and corrosion through a process called galvanization.
It’s found in the Earth’s crust and is usually mined from minerals like sphalerite.
🤔 Interesting Facts
- Your body needs zinc! It’s found in cells, skin, and even helps heal wounds. 🧬
- Zinc doesn’t rust easily, which is why it’s great for coating iron and steel.
- When burned, zinc produces a bright white flame and a fluffy white powder (zinc oxide). 🔥
- Coins often contain zinc — in fact, modern U.S. pennies are mostly zinc with a copper coating! 💰
- It’s also used in zinc-carbon and alkaline batteries. 🔋
🔧 Common Uses
- Galvanization: Coating iron or steel with zinc to prevent rust and corrosion. 🛡️
- Alloys: Combined with copper to make brass, a strong and decorative metal. 🎺
- Health & Nutrition: Found in vitamins, supplements, and foods. Essential for immunity! 💊🥜
- Batteries: Used in zinc-based batteries like alkaline and zinc-air types. 🔋
- Sunscreen & Creams: Zinc oxide protects skin from UV rays and irritation. 🧴☀️
📚 Conclusion
Zinc is one of those unsung heroes of the periodic table — it strengthens metal, supports health, powers batteries, and protects skin. For students, zinc is a perfect example of how one element can have a wide range of useful and essential roles in daily life and modern technology. 🔬🌍