Carbon-14, C-14, 14C or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons. Its presence in organic...
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Radiocarbon dating (redirect from Carbon-14 dating)
Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material...
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valence shell exhibiting 4 electrons. It belongs to group 14 of the periodic table. Carbon makes up about 0.025 percent of Earth's crust. Three isotopes...
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The carbon group is a periodic table group consisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl). It lies within...
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Diamond battery (section Carbon-14)
betavoltaic cell using carbon-14 (14C) in the form of diamond-like carbon (DLC) as the beta radiation source, and additional normal-carbon DLC to make the necessary...
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The 774–775 carbon-14 spike is an observed increase of around 1.2% in the concentration of the radioactive carbon-14 isotope in tree rings dated to 774...
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Carbon-13 (13C) is a natural, stable isotope of carbon with a nucleus containing six protons and seven neutrons. As one of the environmental isotopes,...
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Carbon-12 (12C) is the most abundant of the two stable isotopes of carbon (carbon-13 being the other), amounting to 98.93% of element carbon on Earth;...
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Radioactive decay (section Example for carbon-14)
the carbon-14 becomes trapped when the organic matter grows and incorporates the new carbon-14 from the air. Thereafter, the amount of carbon-14 in organic...
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number. For example, carbon-12, carbon-13, and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively. The atomic...
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The 993–994 carbon-14 spike was a rapid 0.91% increase in carbon-14 isotope content from tree rings dated 993-994 CE. This event was also confirmed with...
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for which carbon-14 dating was developed. Bacteria and associated residue (bacteria by-products and dead bacteria) carry additional carbon-14 that would...
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dating is a technique which is used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when...
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caused the largest and most rapid rise in carbon-14 levels ever recorded. 993–994 CE It caused a carbon-14 spike visible in tree rings which was used...
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Bomb pulse (section Carbon Transport Modeling)
The bomb pulse is the sudden increase of carbon-14 (14C) in the Earth's atmosphere due to the hundreds of above-ground nuclear bombs tests that started...
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Calvin cycle (redirect from Carbon reaction)
reactions, or photosynthetic carbon reduction (PCR) cycle of photosynthesis is a series of chemical reactions that convert carbon dioxide and hydrogen-carrier...
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temperature. As the source of carbon in the carbon cycle, atmospheric CO2 is the primary carbon source for life on Earth. In the air, carbon dioxide is transparent...
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entering Earth's atmosphere produces carbon-14, and plants take in carbon-14 as they fix carbon dioxide. Carbon-14 moves up the food chain as animals eat...
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Tetrafluoromethane, also known as carbon tetrafluoride or R-14, is the simplest perfluorocarbon (CF4). As its IUPAC name indicates, tetrafluoromethane...
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carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon composite, or just carbon, are extremely strong...
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Carbon (6C) has 14 known isotopes, from 8 C to 20 C as well as 22 C , of which 12 C and 13 C are stable. The longest-lived radioisotope is 14 C , with...
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1708–09. Past solar activity may be recorded by various proxies, including carbon-14 and beryllium-10. These indicate lower solar activity during the Maunder...
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Carbon offsetting is a carbon trading mechanism that enables entities to compensate for offset greenhouse gas emissions by investing in projects that...
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radioactvity in carbon-14 among the products of photosynthesis in maize". Proc. Kazan Agric. Inst. 14: 15–24. Kortschak HP, Hart CE, Burr GO (1965). "Carbon dioxide...
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partial list of molecules that contain 14 carbon atoms. Carbon number List of compounds with carbon number 13 List of compounds with carbon number 15...
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consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simplest carbon oxide. In coordination complexes, the carbon monoxide ligand...
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Solar phenomena (section Carbon-14)
high-voltage power transformers. The production of carbon-14 (radiocarbon: 14C) is related to solar activity. Carbon-14 is produced in the upper atmosphere when...
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Graphite (redirect from Carbon electrode)
Graphite (/ˈɡræfaɪt/) is a crystalline allotrope (form) of the element carbon. It consists of many stacked layers of graphene, typically in the excess...
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during George Hourmouziadis's excavations of Dispilio in Greece, and carbon 14-dated to 5202 (± 123) BC. It was discovered in 1993 in a Neolithic lakeshore...
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particles. Although three events and a few candidates have been found in the carbon-14 records in tree rings, it is not possible to associate them definitely...
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