metallic bond
The metallic bond is a type of chemical bond formed between metal atoms in which electrons are delocalized and are therefore free to move about within the metallic lattice. This unique property leads to a number of characteristics peculiar to metals, such as the ability to conduct heat and electricity, malleability, strength, etc.

Key Features:

  • Electron Delocalization: The free movement of conduction electrons in a metallic bond creates a strong attraction between atoms-this accounts for their property of conducting electricity and heat.
  • Strength and Ductility: Metallic bonds can be stretched, bent, or hammered without breaking-the reason for malleability and ductility.
  • Applications: Metal bonding has applications in electrical wiring (in copper and aluminum), construction materials (such as steel and iron), and automotive (in metals used for components where durability and conductivity are required: alloyed metals and engine parts).

While metallic bonds help to explain certain fundamental aspects of metals, namely that they are strong, conductive, and malleable, the properties are also important in the field of electronics, where metals enable the efficient conduction of electrical flow, copper and silver being the most common. In the aerospace and auto industries, metallic bonds allow strength and flexibility in the materials that are used in their construction, including aircrafts and vehicles. Development in metallic bonding continues to improve the properties of metal alloying through nanotechnology, providing designers with even stronger, lighter, and more conductive materials for modern applications.