Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Abundance_of_the_chemical_elements> ?p ?o }
- Abundance_of_the_chemical_elements abstract "The abundance of a chemical element is a measure of the occurrence of the element relative to all other elements in a given environment. Abundance is measured in one of three ways: by the mass-fraction (the same as weight fraction); by the mole-fraction (fraction of atoms by numerical count, or sometimes fraction of molecules in gases); or by the volume-fraction. Volume-fraction is a common abundance measure in mixed gases such as planetary atmospheres, and is similar in value to molecular mole-fraction for gas mixtures at relatively low densities and pressures, and ideal gas mixtures. Most abundance values in this article are given as mass-fractions. For example, the abundance of oxygen in pure water can be measured in two ways: the mass fraction is about 89%, because that is the fraction of water's mass which is oxygen. However, the mole-fraction is 33.3333...% because only 1 atom of 3 in water, H2O, is oxygen. As another example, looking at the mass-fraction abundance of hydrogen and helium in both the Universe as a whole and in the atmospheres of gas-giant planets such as Jupiter, it is 74% for hydrogen and 23-25% for helium; while the (atomic) mole-fraction for hydrogen is 92%, and for helium is 8%, in these environments. Changing the given environment to Jupiter's outer atmosphere, where hydrogen is diatomic while helium is not, changes the molecular mole-fraction (fraction of total gas molecules), as well as the fraction of atmosphere by volume, of hydrogen to about 86%, and of helium to 13%.The abundance of chemical elements in the universe is dominated by the large amounts of hydrogen and helium which were produced in the Big Bang. Remaining elements, making up only about 2% of the universe, were largely produced by supernovae and certain red giant stars. Lithium, beryllium and boron are rare because they are not made directly by stars. The elements from carbon to iron are relatively more common in the universe because of the ease of making them in supernova nucleosynthesis. Elements of higher atomic number than iron (element 26) become progressively more rare in the universe, because they increasingly absorb stellar energy in being produced. Elements with even atomic numbers are generally more common than their neighbors in the periodic table, also due to favorable energetics of formation.The abundance of elements in the Sun and outer planets is similar to that in the universe. Due to solar heating, the elements of Earth and the inner rocky planets of the Solar System have undergone an additional depletion of volatile hydrogen, helium, neon, nitrogen, and carbon (which volatilizes as methane). The crust, mantle, and core of the Earth show evidence of chemical segregation plus some sequestration by density. Lighter silicates of aluminum are found in the crust, with more magnesium silicate in the mantle, while metallic iron and nickel compose the core. The abundance of elements in specialized environments, such as atmospheres, or oceans, or the human body, are primarily a product of chemical interactions with the medium in which they reside.".
- Abundance_of_the_chemical_elements thumbnail Universe_content_pie_chart.jpg?width=300.
- Abundance_of_the_chemical_elements wikiPageExternalLink PTelements.asp?s=Earth.
- Abundance_of_the_chemical_elements wikiPageExternalLink ?id=PXGWGnPPo0gC&printsec=frontcove.
- Abundance_of_the_chemical_elements wikiPageExternalLink fs087-02.
- Abundance_of_the_chemical_elements wikiPageExternalLink dict_ei.html.
- Abundance_of_the_chemical_elements wikiPageExternalLink element_abundances.pdf.
- Abundance_of_the_chemical_elements wikiPageExternalLink S0375674214002866.
- Abundance_of_the_chemical_elements wikiPageExternalLink periodicity.
- Abundance_of_the_chemical_elements wikiPageID "392828".
- Abundance_of_the_chemical_elements wikiPageLength "43401".
- Abundance_of_the_chemical_elements wikiPageOutDegree "241".
- Abundance_of_the_chemical_elements wikiPageRevisionID "707654631".
- Abundance_of_the_chemical_elements wikiPageWikiLink Abundances_of_the_elements_(data_page).
- Abundance_of_the_chemical_elements wikiPageWikiLink Actinium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Africa.
- Abundance_of_the_chemical_elements wikiPageWikiLink Alpha_particle.
- Abundance_of_the_chemical_elements wikiPageWikiLink Aluminium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Americas.
- Abundance_of_the_chemical_elements wikiPageWikiLink Americium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Argon.
- Abundance_of_the_chemical_elements wikiPageWikiLink Asia.
- Abundance_of_the_chemical_elements wikiPageWikiLink Astatine.
- Abundance_of_the_chemical_elements wikiPageWikiLink Astronomy.
- Abundance_of_the_chemical_elements wikiPageWikiLink Atmosphere.
- Abundance_of_the_chemical_elements wikiPageWikiLink Atmosphere_of_Earth.
- Abundance_of_the_chemical_elements wikiPageWikiLink Atmosphere_of_Jupiter.
- Abundance_of_the_chemical_elements wikiPageWikiLink Atom.
- Abundance_of_the_chemical_elements wikiPageWikiLink Atomic_mass.
- Abundance_of_the_chemical_elements wikiPageWikiLink Atomic_number.
- Abundance_of_the_chemical_elements wikiPageWikiLink Australia.
- Abundance_of_the_chemical_elements wikiPageWikiLink Baryon.
- Abundance_of_the_chemical_elements wikiPageWikiLink Berkelium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Beryllium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Big_Bang.
- Abundance_of_the_chemical_elements wikiPageWikiLink Big_Bang_nucleosynthesis.
- Abundance_of_the_chemical_elements wikiPageWikiLink Binding_energy.
- Abundance_of_the_chemical_elements wikiPageWikiLink Biosphere.
- Abundance_of_the_chemical_elements wikiPageWikiLink Boron.
- Abundance_of_the_chemical_elements wikiPageWikiLink Bromine.
- Abundance_of_the_chemical_elements wikiPageWikiLink Calcium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Californium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Carbon.
- Abundance_of_the_chemical_elements wikiPageWikiLink Carbon-12.
- Abundance_of_the_chemical_elements wikiPageWikiLink Carbon-13.
- Abundance_of_the_chemical_elements wikiPageWikiLink Carbon-burning_process.
- Abundance_of_the_chemical_elements wikiPageWikiLink Category:Astrochemistry.
- Abundance_of_the_chemical_elements wikiPageWikiLink Category:Properties_of_chemical_elements.
- Abundance_of_the_chemical_elements wikiPageWikiLink Cerium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Chemical_element.
- Abundance_of_the_chemical_elements wikiPageWikiLink Chlorine.
- Abundance_of_the_chemical_elements wikiPageWikiLink Cobalt.
- Abundance_of_the_chemical_elements wikiPageWikiLink Copper.
- Abundance_of_the_chemical_elements wikiPageWikiLink Cosmic_ray.
- Abundance_of_the_chemical_elements wikiPageWikiLink Curium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Dark_energy.
- Abundance_of_the_chemical_elements wikiPageWikiLink Dark_matter.
- Abundance_of_the_chemical_elements wikiPageWikiLink Decay_product.
- Abundance_of_the_chemical_elements wikiPageWikiLink Deductive_reasoning.
- Abundance_of_the_chemical_elements wikiPageWikiLink Deuterium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Diatomic_molecule.
- Abundance_of_the_chemical_elements wikiPageWikiLink Earth.
- Abundance_of_the_chemical_elements wikiPageWikiLink Electron.
- Abundance_of_the_chemical_elements wikiPageWikiLink Europe.
- Abundance_of_the_chemical_elements wikiPageWikiLink Formation_and_evolution_of_the_Solar_System.
- Abundance_of_the_chemical_elements wikiPageWikiLink Francium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Galaxy.
- Abundance_of_the_chemical_elements wikiPageWikiLink Gas_giant.
- Abundance_of_the_chemical_elements wikiPageWikiLink Gold.
- Abundance_of_the_chemical_elements wikiPageWikiLink Gravimetric_analysis.
- Abundance_of_the_chemical_elements wikiPageWikiLink Helium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Helium-3.
- Abundance_of_the_chemical_elements wikiPageWikiLink Helium-4.
- Abundance_of_the_chemical_elements wikiPageWikiLink History_of_Earth.
- Abundance_of_the_chemical_elements wikiPageWikiLink Human.
- Abundance_of_the_chemical_elements wikiPageWikiLink Human_impact_on_the_environment.
- Abundance_of_the_chemical_elements wikiPageWikiLink Human_settlement.
- Abundance_of_the_chemical_elements wikiPageWikiLink Hydrogen.
- Abundance_of_the_chemical_elements wikiPageWikiLink Ideal_gas.
- Abundance_of_the_chemical_elements wikiPageWikiLink Iodine.
- Abundance_of_the_chemical_elements wikiPageWikiLink Ion.
- Abundance_of_the_chemical_elements wikiPageWikiLink Iron.
- Abundance_of_the_chemical_elements wikiPageWikiLink Iron-56.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotope.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_aluminium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_argon.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_calcium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_hydrogen.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_iron.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_magnesium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_neon.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_nickel.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_nitrogen.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_silicon.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_sodium.
- Abundance_of_the_chemical_elements wikiPageWikiLink Isotopes_of_sulfur.
- Abundance_of_the_chemical_elements wikiPageWikiLink Jupiter.
- Abundance_of_the_chemical_elements wikiPageWikiLink Lambda-CDM_model.
- Abundance_of_the_chemical_elements wikiPageWikiLink Land.
- Abundance_of_the_chemical_elements wikiPageWikiLink Lanthanum.