What type(s) of bonding would be expected for each of the...

Name: Problem 22, Chapter 2: Materials Science and Engineering: An Introduction
Uploaded: 2021-11-29T21:17:16-08:00
Duration: 2 min 15 s
Channel: Abhinav Roy
Description: What type(s) of bonding would be expected for each of the following materials: brass (a copper-zinc alloy), rubber, barium sulfide (BaS), solid xenon, bronze, nylon, and aluminum phosphide (AIP)?

What type(s) of bonding would be expected for each of the following materials: brass (a copper-zinc alloy), rubber, barium sulfide (BaS), solid xenon, bronze, nylon, and aluminum phosphide (AIP)?

Key Concepts

Metallic Bonding

This type of bonding occurs in metals and alloys, where a lattice of positive ions is immersed in a 'sea' of delocalized electrons. This electron mobility is responsible for the characteristic properties of metals, such as electrical conductivity, malleability, and ductility. In alloys, the mixing of different metal atoms results in a homogeneous metallic bond network that retains these properties.

Covalent Bonding

Covalent bonds form when atoms share electrons to attain filled outer electron shells, resulting in strong directional bonds. This bonding is typical in non?metallic substances and in the backbone structures of polymers where atoms are linked into long chains. The strength and directionality of covalent bonds define the mechanical and chemical stability of many compounds.

Ionic Bonding

Ionic bonding arises from the electrostatic attraction between oppositely charged ions formed when atoms transfer electrons. This type of bonding generally occurs between metals and non?metals and results in crystalline structures with high melting points, brittleness, and electrical conductivity when molten or dissolved in water.

Van der Waals Bonding

Also known as dispersion or London forces, van der Waals bonding consists of weak intermolecular attractions due to temporary fluctuations in electron density. Although much weaker than covalent, ionic, or metallic bonds, these forces are significant in substances that consist of nonpolar molecules or atoms, especially in condensed phases of noble gases at low temperatures.

Hydrogen Bonding

Hydrogen bonding is a specific, stronger type of dipole–dipole interaction that occurs when a hydrogen atom bonded to a highly electronegative atom (such as oxygen or nitrogen) interacts with another electronegative atom. This bonding is crucial in stabilizing the secondary structure of polymers and biological macromolecules, influencing properties like melting point and solubility.

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