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  Encyclopedia of Keywords > Nature > Natural Resources > Minerals > Carbon   Michael Charnine

Keywords and Sections
COMPOUNDS CARBON
CARBON COMPOUNDS
CHARCOAL
ALLOTROPES
AMORPHOUS CARBON
FORM
DIAMOND BUT
ORGANIC
DIAMOND NANORODS
SUBSTANCES
GRAPHITE
CHAINS
HELIUM NUCLEI
CARBON DIOXIDE
VERY HIGH
FORMS CARBON
COAL
ALLOTROPIC FORMS
CARBON ATOMS
CARBON MONOXIDE
STRUCTURE
LIVING
NATURAL GAS
SIX
CARBONATE
CARBON
CARBONS
Review of Short Phrases and Links

    This Review contains major "Carbon"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. Carbon is the basis for all plastic materials that are used in common household items.
  2. Carbon is a vital component of all known living systems, and without it life as we know it could not exist (see carbon chauvinism).
  3. Carbon is the fourth most common element in the sun. (Web site)
  4. Carbon is one of the few elements that occur in nature in its free elemental form (native). (Web site)
  5. Carbon is the fourth most abundant element in the universe, and it plays a crucial role in the health and stability of the planet through the carbon cycle. (Web site)

Compounds Carbon

  1. Hydrogen forms a vast array of compounds with carbon.
  2. More than 1 000 000 compounds of carbon are believed to have been discovered; the exact number never has been determined.

Carbon Compounds

  1. Carbon compounds form the basis of all life on Earth and the carbon-nitrogen cycle provides some of the energy produced by the Sun and other stars.
  2. There are nearly ten million carbon compounds known to science.
  3. There are a tremendous number of carbon compounds; some are lethally poisonous ( cyanide, CN -), and some are essential to life ( dextrose).

Charcoal

  1. Graphite carbon in a powdered, caked form is used as charcoal for cooking, artwork and other uses.
  2. Graphite carbon in a powdered, caked form is used as charcoal for grilling, artwork and other uses. (Web site)
  3. The Asgard would never invent a weapon that propels small weights of iron and carbon alloys, by igniting a powder of potassium nitrate, charcoal and sulphur.

Allotropes

  1. A ferromagnetic carbon nanofoam allotrope has also been discovered.
  2. At very high pressures carbon forms an allotrope called diamond, in which each atom is bonded to four others.
  3. The allotropes of carbon are the different molecular configurations that pure carbon can take.
  4. At very high pressures carbon forms the more compact allotrope diamond, having nearly twice the density of graphite.
  5. The last-known allotrope of carbon, fullerenes, were discovered as byproducts of molecular beam experiments in the 1980's. (Web site)

Amorphous Carbon

  1. The three relatively well-known allotropes of carbon are amorphous carbon, graphite, and diamond.
  2. Eight allotropes of carbon: Diamond, graphite, lonsdaleite, C60, C540, C70, amorphous carbon and a carbon nanotube.
  3. Some of these forms include hexagonal graphite, rhombohedral graphite, diamond, buckminsterfullerene, and amorphous carbon (not really a crystalline form). (Web site)

Form

  1. All in all, with an electronegativity of 2.5, carbon prefers to form covalent bonds.
  2. Carbon in the form of microscopic diamonds is found in some meteorites.
  3. The major economic use of carbon is in the form of hydrocarbons, most notably the fossil fuels methane gas and crude oil.
  4. The major economic use of carbon is in the form of hydrocarbons, most notably the fossil fuel methane gas and crude oil (petroleum).

Diamond But

  1. Under some conditions, carbon crystallizes as Lonsdaleite, a form similar to diamond but hexagonal.
  2. Carbon nanotubes are structurally similar to buckyballs, except that each atom is bonded trigonally in a curved sheet that forms a hollow cylinder.
  3. Under some conditions, carbon crystallizes as Lonsdaleite, a form similar to diamond but forming a hexagonal crystal lattice.

Organic

  1. Carbon occurs in all organic life and is the basis of organic chemistry.
  2. Under special treatment (stretching of organic fibers and carbonization) it is possible to arrange the carbon planes in direction of the fiber.
  3. By some definitions, "organic" compounds are only required to contain carbon (as a classic historical example, urea).
  4. Carbon fiber is made by pyrolysis of extruded and stretched filaments of polyacrylonitrile (PAN) and other organic substances.
  5. The study of carbon compounds, both natural and synthetic, is called organic chemistry. (Web site)

Diamond Nanorods

  1. Several exotic allotropes have also been synthesized or discovered, including fullerenes, carbon nanotubes, lonsdaleite and aggregated diamond nanorods.
  2. In diamonds, the atoms of carbon are bonded together into a three dimensional solid.
  3. The system of carbon allotropes spans a range of extremes: Synthetic diamond nanorods are the hardest materials known.

Substances

  1. It is, rather, present as a powder which is the main constituent of substances such as charcoal, lampblack ( soot) and activated carbon.
  2. Carbon, due to its non-reactivity with many substances that corrode most materials, is often used as an electrode.

Graphite

  1. For example, the reference state for carbon is graphite, because it is more stable than the other allotropes.
  2. Pencil lead is graphite carbon and not the chemical element lead.

Chains

  1. As chain length increases ultimately we reach polyethylene, which consists of carbon chains of indefinite length, which is generally a hard white solid.

Helium Nuclei

  1. Instead, the interiors of stars in the horizontal branch transform three helium nuclei into carbon by means of this triple-alpha process.
  2. Formation of the carbon atomic nucleus requires a nearly simultaneous triple collision of alpha particle s ( helium nuclei).

Carbon Dioxide

  1. Some of this biomass is eaten by animals, where some of it is exhaled as carbon dioxide.
  2. For example, plants draw carbon dioxide out of the environments and use it to build biomass.
  3. Their purpose is to protect the weld area from atmospheric gases, such as oxygen, nitrogen, carbon dioxide, and water vapor.

Very High

  1. Carbon may catch fire at very high temperatures and burn vigorously (as in the Windscale fire).
  2. Carbon may also spawn flames at very high temperatures and burn vigorously and brightly (as in the Windscale fire).
  3. With reactive metals, such as tungsten, carbon forms either carbides, C -, or acetylides, C 2 2- to form alloys with very high melting points.

Forms Carbon

  1. When united with oxygen it forms carbon dioxide which is absolutely vital to plant growth.
  2. Rotational transitions of various isotopic forms of carbon monoxide (e.g.

Coal

  1. Silicon is commercially prepared by the reaction of high-purity silica with wood, charcoal, and coal, in an electric arc furnace using carbon electrodes.
  2. In German and Dutch, the names for carbon are Kohlenstoff and koolstof respectively, both literally meaning " coal -stuff".

Allotropic Forms

  1. Because of these properties, carbon is known to form nearly ten million different compounds, the large majority of all chemical compounds.
  2. The physical properties of carbon vary widely with the allotropic form.
  3. An abundant nonmetal lic, tetravalent element, carbon has several allotropic forms.
  4. An abundant nonmetallic, tetravalent element, carbon has several allotropic forms: diamonds (hardest known mineral).

Carbon Atoms

  1. Diamond is a transparent crystal of pure carbon consisting of tetrahedrally bonded carbon atoms.
  2. Whereas graphite is in the form of sheets, a diamond is basically a huge "molecule" composed of carbon atoms strung together by covalent bonds. (Web site)

Carbon Monoxide

  1. The most common oxidation state of carbon in inorganic compounds is +4, while +2 is found in carbon monoxide and other transition metal carbonyl complexes.
  2. The other common oxide is carbon monoxide (CO). It is formed by incomplete combustion, and is a colorless, odorless gas.

Structure

  1. In its amorphous form, carbon is essentially graphite but not held in a crystalline macrostructure.
  2. One main detraction for silicon-based life is that unlike carbon, silicon does not have the tendency to form double and triple bonds.
  3. In water it forms trace amounts of carbonic acid, H 2 CO 3, but as most compounds with multiple single-bonded oxygens on a single carbon it is unstable.
  4. The chemical and structural properties of fullerenes, in the form of carbon nanotubes, has promising potential uses in the nascent field of nanotechnology.
  5. Silicon, like carbon and other group IV elements form face-centered diamond cubic crystal structure.

Living

  1. Carbon is essential to all known living systems, and without it life as we know it could not exist (see alternative biochemistry). (Web site)
  2. Carbon is also in plenty of things that were once living, which makes it useful for dating the remains of past settlements on Earth. (Web site)

Natural Gas

  1. When combined with hydrogen, carbon form coal, petroleum, and natural gas which are called hydrocarbons.
  2. Carbon dioxide is also the gas formed when natural gas, oil and coal are burned.

Six

  1. Isotopes of carbon are atomic nuclei that contain six protons plus a number of neutrons (varying from 2 to 16).
  2. A chemical element; its symbol is C. The carbon nucleus has six protons and six or more neutrons; six electrons are in orbit around the carbon nucleus. (Web site)
  3. The six carbon-carbon bond lengths are identical when measured, which would be invalid for the cyclic triene.

Carbonate

  1. With smaller amounts of calcium, magnesium, and iron, carbon is a major component of very large masses carbonate rock ( limestone, dolomite, marble etc.).
  2. With oxygen and a metallic element, carbon forms many important carbonates, such as calcium carbonate (limestone) and sodium carbonate (soda). (Web site)
  3. Sodium carbonate and silicon dioxide react when molten to form sodium silicate and carbon dioxide.

Carbon

  1. The paths that carbon follows in the environment are called the carbon cycle.
  2. Like carbon, some isotopes of various elements are radioactive and decay into other elements upon radiating an alpha or beta particle.
  3. Carbon-carbon bonds are strong, and stable.
  4. Carbon is abundant in the Sun, stars, comets, and in the atmospheres of most planets.
  5. Plastics are made from synthetic carbon polymers, often with oxygen and nitrogen atoms included at regular intervals in the main polymer chain.

Carbons

  1. The solar system is one such second-generation star, made from carbon in the dust of dozens of supernovae in its local area of the galaxy.
  2. At room temperature, carbon tetrafluoride is a gas, carbon tetrachloride is a liquid, and the other two compounds are solids. (Web site)

Categories

  1. Encyclopedia of Keywords > Nature > Natural Resources > Minerals
  2. Encyclopedia of Keywords > Nature > Matter > Atoms
  3. Substance > Compounds > Salts > Carbonates
  4. Nature > Chemistry > Organic Chemistry > Organic Compounds
  5. Encyclopedia of Keywords > Nature > Chemistry

Subcategories

Acetate
Aldehyde
Carbon Cycle
Carbon Tax
Diamond
Hexose
Lonsdaleite
Maltose
Sphingosine
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  Short phrases about "Carbon"
  Originally created: May 07, 2008.
  Links checked: January 15, 2013.
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