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Related Concept Videos

Elements and Compounds01:27

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...
Elements: Chemical Symbols and Isotopes02:31

Elements: Chemical Symbols and Isotopes

A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is used to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
Metal-Ligand Bonds02:51

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...
Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Imperfections in Crystal Structure: Non-Stoichiometric Defects01:29

Imperfections in Crystal Structure: Non-Stoichiometric Defects

Non-stoichiometric defects refer to a type of defect in the crystal structure of a compound where the ratio of its constituent elements deviates from the ideal stoichiometric ratio. There are two main types of non-stoichiometric defects: metal excess defects and metal deficiency defects.Metal excess defects occur when there is a slight surplus of metal ions than what is required by the stoichiometric ratio of the compound. For example, heating a sodium chloride crystal in sodium vapor results...
Fineness Modulus01:19

Fineness Modulus

The fineness modulus (FM) of aggregate is a numerical index that measures the coarseness or fineness of the particles. It is calculated by adding the cumulative percentages of aggregate retained on each of a specified series of sieves and dividing the sum by 100.
Consider performing sieve analysis on sand through a set of ASTM sieves. The weight of aggregate retained in each sieve and pan placed at the bottom is recorded, as given in Column B of Table 1.
To determine the fineness modulus of...

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Related Experiment Video

Updated: Jun 24, 2026

Analysis of Minerals Produced by hFOB 1.19 and Saos-2 Cells Using Transmission Electron Microscopy with Energy Dispersive X-ray Microanalysis
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Analysis of Minerals Produced by hFOB 1.19 and Saos-2 Cells Using Transmission Electron Microscopy with Energy Dispersive X-ray Microanalysis

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A meteoritic component rich in volatile elements: its characterization and implications.

R Ganapathy, J W Larimer

    Science (New York, N.Y.)
    |January 4, 1980
    PubMed
    Summary
    This summary is machine-generated.

    A unique carbon-rich material in the Abee meteorite shows extreme enrichment in volatile elements. This discovery may explain the unusual abundance of elements like mercury in meteorites, offering insights into solar nebula processes.

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    Area of Science:

    • Cosmochemistry
    • Planetary Science
    • Meteoritics

    Background:

    • Meteorites provide crucial insights into the early solar system's composition and processes.
    • Understanding elemental abundances in meteorites helps reconstruct the conditions of planet formation.

    Purpose of the Study:

    • To investigate the composition of an unusual carbon-rich material within the Abee meteorite.
    • To determine the enrichment factors of volatile and nonvolatile elements in this material.
    • To explore the implications of these findings for solar nebula chemistry and meteorite composition.

    Main Methods:

    • Analysis of the Abee meteorite's carbon-rich inclusions.
    • Quantification of elemental abundances, focusing on volatile and nonvolatile elements.
    • Comparison of observed enrichment factors with models of solar nebula processes.

    Main Results:

    • The carbon-rich material is highly enriched in volatile elements (up to 10^4 times) compared to nonvolatile elements.
    • A mercury enrichment factor of 8500 was observed.
    • This enrichment pattern suggests formation late in the solar nebula from residual dust.

    Conclusions:

    • The Abee meteorite contains a unique, volatile-rich component formed under specific solar nebula conditions.
    • This material's composition provides a potential explanation for the high abundance of mercury and other volatile elements in certain meteorites.
    • The findings support models of late-stage accretion in the solar nebula involving residual dust.