M

Metallic Bond

Metallic bond: M → M^n+ + ne⁻ (delocalised electrons); sea of electrons model
Quick Reference
Formula / NotationMetallic bond: M → M^n+ + ne⁻ (delocalised electrons); sea of electrons model
Also Known AsMetallic bond, metal-metal bond, delocalised electron bonding, sea of electrons model

What is Metallic Bond?

The type of chemical bonding in metals, characterized by mobile electrons (electron sea) surrounding a lattice of positive metal ions. Metallic bonds explain the high electrical and thermal conductivity, malleability, and ductility of metals. Bond strength varies among metals.

Formula & Notation

Metallic bond: M → M^n+ + ne⁻ (delocalised electrons); sea of electrons model

Other Names / Synonyms: Metallic bond, metal-metal bond, delocalised electron bonding, sea of electrons model

Properties & Characteristics

Metallic bonding is the electrostatic attraction between a lattice of positive metal ions (cations) and a "sea" of delocalised valence electrons that are free to move throughout the metal. It explains the characteristic properties of metals: high electrical and thermal conductivity (mobile electrons), malleability and ductility (layers of cations can slide without breaking bonds), metallic lustre (electrons reflect light), and generally high melting points (strong overall attraction).

Uses & Applications

Metallic bonding underpins the properties of: structural metals (iron, steel, aluminium for construction), electrical conductors (copper, silver for wiring), thermal conductors (copper, aluminium for heat exchangers), alloys (mixing metals adjusts the metallic bonding and properties), and superconductors (metals where electrical resistance → 0 at very low temperature).

Safety Information

Metallic objects are electrical conductors — creating short-circuit risks in electrical equipment. Metal powders (Mg, Al, Ti, Zr) with high surface area are pyrophoric or readily ignite and burn with intense heat. Molten metals splash and cause severe burns if water contacts them (steam explosion).

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Metallic Bond
Formula Metallic bond: M → M^n+ + ne⁻ (delocalised electrons); sea of electrons model
Synonyms Metallic bond, metal-metal bond, delocalised electron bonding, sea of electrons model

Frequently Asked Questions

The type of chemical bonding in metals, characterized by mobile electrons (electron sea) surrounding a lattice of positive metal ions. Metallic bonds explain the high electrical and thermal conductivity, malleability, and ductility of metals. Bond strength varies among metals.

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