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Bonding in Metals

Bonding in Metals

Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.

Metallic Solids

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....

Alkali Metals

Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals

Metal-Ligand Bonds

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

Properties of Transition Metals

Properties of Transition Metals

Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.

Theory of Metallic Conduction

Theory of Metallic Conduction

The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...

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Related Experiment Video

Updated: Feb 4, 2026

Fabrication of Thin Film Silver/Silver Chloride Electrodes with Finely Controlled Single Layer Silver Chloride

Fabrication of Thin Film Silver/Silver Chloride Electrodes with Finely Controlled Single Layer Silver Chloride

Published on: July 1, 2020

Tarnishing Silver Metal into Mithrene.

Brittany Trang¹, Matthew Yeung¹, Derek C Popple^1,2

¹The Molecular Foundry , Lawrence Berkeley National Laboratory , One Cyclotron Road , Berkeley , California 94720 , United States.

Journal of the American Chemical Society

|September 29, 2018

Summary

Researchers developed a new method to create luminescent semiconducting thin films using silver and diphenyl diselenide. This facile process offers a novel route to advanced optoelectronic materials.

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Last Updated: Feb 4, 2026

Fabrication of Thin Film Silver/Silver Chloride Electrodes with Finely Controlled Single Layer Silver Chloride

Fabrication of Thin Film Silver/Silver Chloride Electrodes with Finely Controlled Single Layer Silver Chloride

Published on: July 1, 2020

A Method to Fabricate Disconnected Silver Nanostructures in 3D

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Published on: November 27, 2012

Use of Autometallography to Localize and Semi-Quantify Silver in Cetacean Tissues

Use of Autometallography to Localize and Semi-Quantify Silver in Cetacean Tissues

Published on: October 4, 2018

Area of Science:

Materials Science
Nanotechnology
Solid-state Chemistry

Background:

Silver tarnishing involves oxidation and salt precipitation.
Tarnishing is a method for creating thin metal-sulfide films.
This process can be adapted for advanced materials with optoelectronic properties.

Purpose of the Study:

To prepare luminescent semiconducting thin films of mithrene (silver benzeneselenolate).
To utilize diphenyl diselenide as a sulfur source alternative for film preparation.
To explore the optoelectronic properties of these novel thin films.

Main Methods:

Corrosion of metallic silver thin films using diphenyl diselenide.
Formation of mithrene (silver benzeneselenolate) [AgSePh]∞ as a crystalline solid.
Characterization of large-area thin films (5-100 nm thickness) for optical properties.

Main Results:

Successfully prepared luminescent semiconducting mithrene thin films.
Mithrene exhibits both organic supramolecular and 2D inorganic coordination polymer phases.
Optical properties of the compound were measured using wafer-scale films.

Conclusions:

This method provides a facile route to hybrid organic-inorganic chalcogenolate thin films.
Mild-temperature, wafer-scale processing is achievable.
Potential applications in semiconductor devices and hierarchical architectures.