metallic bond
Low in general use; High in scientific/technical contexts.Formal; Technical; Scientific.
Definition
Meaning
A chemical bond characteristic of metals, involving the delocalized sharing of free electrons among a lattice of positively charged metal ions.
The primary type of bonding in elemental metals and alloys, responsible for their characteristic properties like electrical and thermal conductivity, malleability, and luster.
Linguistics
Semantic Notes
Always used as a compound noun. The concept is foundational in chemistry and materials science, contrasting with ionic and covalent bonding.
Dialectal Variation
British vs American Usage
Differences
No significant differences in definition. Spelling follows national conventions ('metallic' not 'metalic').
Connotations
Identical technical connotations in both dialects.
Frequency
Equally common in respective academic and technical spheres.
Vocabulary
Collocations
Grammar
Valency Patterns
The metallic bond in [metal] is [adjective].[Metal] atoms are held together by metallic bonding.Metallic bonding results in [property].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[None applicable]”
Usage
Context Usage
Business
Rare, except in specific industries like metallurgy or semiconductor manufacturing.
Academic
Core term in chemistry, physics, and materials science textbooks and lectures.
Everyday
Virtually never used in casual conversation.
Technical
Fundamental and frequent term in research papers, engineering, and laboratory discussions.
Examples
By Part of Speech
verb
British English
- No standard verb form exists. Use 'are bonded metallically' or 'undergo metallic bonding'.
American English
- No standard verb form exists. Use 'are metallically bonded' or 'engage in metallic bonding'.
adverb
British English
- The atoms are bonded metallically.
- The electrons are shared metallically throughout the structure.
American English
- The ions interact metallically.
- Charge is conducted metallically.
adjective
British English
- The metallic-bonding model is key to understanding conductivity.
- They studied the metallic-bond character of the alloy.
American English
- The metallic-bonding theory was presented.
- This exhibits metallic-bond properties.
Examples
By CEFR Level
- Metals are shiny because of the metallic bond.
- Copper has a metallic bond.
- A metallic bond involves free-moving electrons.
- The strength of a metallic bond affects a metal's melting point.
- The ductility of gold can be attributed to its delocalised electrons and non-directional metallic bonds.
- In a metallic bond, the positive metal ions are arranged in a lattice surrounded by a 'sea' of delocalised valence electrons.
- The exceptional thermal conductivity of silver is a direct consequence of its highly efficient metallic bonding, which facilitates rapid electron transfer.
- Alloy design often involves manipulating metallic bonding by introducing atoms of different sizes and electronegativities to disrupt the electron sea.
Learning
Memory Aids
Mnemonic
Think of a metallic bond as a 'sea of electrons' holding a crowd of metal ions together, like a positively charged crowd held in place by a shared, moving, negative 'sea' of people.
Conceptual Metaphor
ELECTRONS ARE A FLUID (a sea, a cloud) that flows through a fixed lattice.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid a direct word-for-word translation implying a physical 'bond' or 'bondage' (like a rope). The term is conceptual. The Russian equivalent 'металлическая связь' is a direct calque and correct.
Common Mistakes
- Pronouncing 'metallic' with stress on the first syllable (ME-tal-lic). Correct stress is on the second syllable (me-TAL-lic).
- Using it as a verb, e.g., 'The atoms metallic bond.' It is strictly a noun phrase.
Practice
Quiz
Which of the following is NOT a characteristic property primarily explained by metallic bonding?
FAQ
Frequently Asked Questions
It depends on the specific substances. Some metallic bonds (e.g., in tungsten) are very strong, while others (e.g., in mercury) are weak. Covalent bonds also have a wide range of strengths. There is no universal rule.
No, by definition, metallic bonding occurs between metal atoms. However, some compounds and materials exhibit 'metallic character' or have bonding with partial metallic properties.
It is the classic, simplified model for visualizing metallic bonding. It depicts the metal's valence electrons as detached and free to move throughout the entire solid, forming a 'sea' around the fixed positive ions.
In ionic bonding, electrons are transferred, creating discrete positive and negative ions that attract. In metallic bonding, electrons are delocalised and shared among all atoms. Ionic compounds are typically brittle and insulating, while metals are malleable and conductive.