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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. Many...

Properties of Organometallic Compounds

Properties of Organometallic Compounds

Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.

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”.

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

The Periodic Table

The Periodic Table

As early chemists discovered more elements, they realized that various elements could be grouped by their similar chemical behaviors. One such grouping includes lithium (Li), sodium (Na), and potassium (K). All of these elements are shiny, conduct heat and electricity well, and have similar chemical properties. A second grouping includes calcium (Ca), strontium (Sr), and barium (Ba), which also are shiny, good conductors of heat and electricity, and have chemical properties in common. However,...

Elements and Compounds

Elements and Compounds

Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.ElementsElements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...

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Photoassisted Electrolysis of Water by Visible Irradiation of a p-Type Gallium Phosphide Electrode.

Science (New York, N.Y.)·1977

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Related Experiment Video

Updated: Jul 12, 2026

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

III-V Compounds and Alloys: An Update.

Science (New York, N.Y.)

|May 23, 1980

Summary

Advances in thin-film epitaxy enable high-quality III-V heterojunctions. This breakthrough is driving new optoelectronic devices and may impact high-speed integrated circuits.

Area of Science:

Materials Science
Solid-State Physics
Semiconductor Devices

Background:

III-V compounds and alloys have been researched for decades.
Commercialization has been limited to specialized optoelectronic and microwave devices.
Previous limitations in material quality hindered broader applications.

Purpose of the Study:

To highlight recent advancements in III-V material processing.
To explore the impact of improved heterojunction quality on device development.
To discuss potential future applications in integrated circuits.

Main Methods:

Focus on thin-film epitaxy techniques, including liquid phase epitaxy (LPE) and chemical vapor deposition (CVD).
Emphasizes the formation of lattice-matched heterojunctions.

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Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods

Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods

Published on: October 6, 2023

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Last Updated: Jul 12, 2026

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods

Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods

Published on: October 6, 2023

Discusses the resulting material quality.

Main Results:

Achieved high-quality, lattice-matched heterojunctions using advanced epitaxy.
Enabled the development of novel optoelectronic devices, such as room-temperature continuous-wave injection lasers.
Demonstrated the potential for improved performance in semiconductor devices.

Conclusions:

Thin-film epitaxy advancements are crucial for III-V material utilization.
High-quality heterojunctions open doors for new device functionalities.
Future research directions include high-speed integrated circuits.