"Carbon-15" redirects here. For the firearm, see Carbon 15.
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Isotopes of carbon" – news · newspapers · books · scholar · JSTOR(May 2018) (Learn how and when to remove this message)
Isotopes of carbon (6C)
Main isotopes
Decay
abundance
half-life (t1/2)
mode
product
11C
synth
20.34 min
β+
11B
12C
98.9%
stable
13C
1.06%
stable
14C
1 ppt (1⁄1012)
Preview warning: Infobox C isotopes: Abundance percentage not recognised "na=1 ppt (1⁄1012)" cat#%
5.70×103 y
β−
14N
Standard atomic weight Ar°(C)
[12.0096, 12.0116][1]
12.011±0.002 (abridged)[2]
view
talk
edit
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 a half-life of 5.70(3)×103 years. This is also the only carbon radioisotope found in nature, as trace quantities are formed cosmogenically by the reaction 14 N + n → 14 C + 1 H . The most stable artificial radioisotope is 11 C , which has a half-life of 20.3402(53) min. All other radioisotopes have half-lives under 20 seconds, most less than 200 milliseconds. The least stable isotope is 8 C , with a half-life of 3.5(1.4)×10−21 s. Light isotopes tend to decay into isotopes of boron and heavy ones tend to decay into isotopes of nitrogen.
^"Standard Atomic Weights: Carbon". CIAAW. 2009.
^Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.
and 24 Related for: Isotopes of carbon information
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...
each isotopeof a given element has a different mass number. For example, carbon-12, carbon-13, and carbon-14 are three isotopesof the element carbon with...
properties of radiocarbon, a radioactive isotopeofcarbon. The method was developed in the late 1940s at the University of Chicago by Willard Libby. It is based...
change in the ratio of the atmospheric concentrations of heavy isotopesofcarbon (13C and 14C) by the admixture of large amounts of fossil-fuel derived...
react with certain stable isotopesofcarbon. The selective enrichment of one stable isotope over another creates distinct isotopic fractionations that can...
electrons. It belongs to group 14 of the periodic table. Carbon makes up about 0.025 percent of Earth's crust. Three isotopes occur naturally, 12C and 13C...
Isotope analysis is the identification ofisotopic signature, abundance of certain stable isotopesof chemical elements within organic and inorganic compounds...
has isotopes that are not radioactive, these are termed "stable" isotopes. All of the known stable isotopes occur naturally (see primordial isotope). The...
770(300) ys (7.7(3.0)×10−22 s). See isotopesofcarbon for notes about the measurement. Light radioactive neon isotopes usually decay to fluorine or oxygen...
For example, the most common isotopeofcarbon is carbon-12, or 12 C , which has 6 protons and 6 neutrons. The full isotope symbol would also have the atomic...
more specific atoms with their isotopes. The reactant is then allowed to undergo the reaction. The position of the isotopes in the products is measured to...
The isotopic signature of C3 plants shows higher degree of 13C depletion than the C4 plants, due to variation in fractionation ofcarbonisotopes in oxygenic...
of an element, weighted by the abundance of the isotopes. The dimensionless (standard) atomic weight is the weighted mean relative isotopic mass of a...
15 known isotopesofcarbon. Of these, three are naturally occurring. The most common is stable carbon-12, followed by stable carbon-13. Carbon-14 is a...
A table or chart of nuclides is a two-dimensional graph ofisotopesof the elements, in which one axis represents the number of neutrons (symbol N) and...
clumped isotopes are methane molecules that contain two or more rare isotopes. Methane (CH4) contains two elements, carbon and hydrogen, each of which has...
Biological carbon fixation, or сarbon assimilation, is the process by which living organisms convert inorganic carbon (particularly carbon dioxide) to...
at the top. These spines can be dated using bomb-spike Carbon-14 and isotopesofcarbon (Carbon-13) and oxygen (Oxygen-18) may be used to infer past climate...
stable isotopes usually refers to isotopesof the same element. The relative abundance of such stable isotopes can be measured experimentally (isotope analysis)...
An isotopic signature (also isotopic fingerprint) is a ratio of non-radiogenic 'stable isotopes', stable radiogenic isotopes, or unstable radioactive...
The Hirnantian IsotopicCarbon Excursion (HICE) is a positive carbonisotope excursion which took place at the end of the Ordovician period, during the...
half-lives shorter than 17.35 ms. Those isotopes with mass below 10 decay into helium (via short-lived isotopesof beryllium for 7 B and 9 B ) while those...
Global Information