Magnesium
Physical and Chemical Properties
- Lightness: One of the lightest structural metals (density ~1.74 g/cm³).
- Strength: High strength despite low weight; often used in alloys.
- Corrosion resistance: Forms a stable oxide layer for protection.
- Melting point: Around 650 °C.
- Reactivity: Reacts easily with water and oxygen; burns with a bright white flame.
- Electron configuration: [Ne] 3s².
Uses of Magnesium
- Alloys: Widely used in automotive and aerospace industries.
- Construction: For strong, lightweight structural components.
- Electronics: In housings for laptops, cameras, etc.
- Medicine: In supplements and medications; essential nutrient.
- Pyrotechnics and signaling: In flares and fireworks.
- Metallurgy: As a reducing agent and deoxidizer in steel production.
Advantages
- Weight reduction
- High strength-to-weight ratio
- Corrosion resistance
- Recyclability
- Health benefits
Summary
Magnesium is a versatile, lightweight metal with unique properties. It is essential in automotive, aerospace, construction, electronics, medicine, pyrotechnics, and metallurgy.
Further Information
More details can be found in chemistry and materials science textbooks and on specialized websites about metallurgy and technology.