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Carbon-11 or 11 C is a radioactive isotope of mass 11 of the element carbon, which has a half-life of about 20, 5 minutes decays to boron-11. The atomic nucleus of the nuclide is made up of 5 neutrons and the 6 element-specific protons.
Carbon-11 or 11 C is a radioactive isotope of carbon that decays to boron-11. This decay mainly occurs due to positron emission, with around 0.19–0.23% of decays instead occurring by electron capture. [6] [7] It has a half-life of 20.3402(53) min. 11 C → 11 B + e + + ν e + 0.96 MeV 11 C + e − → 11 B + ν e + 1.98 MeV
Click any isotope in diagram to see its data. Detailed decay information for the isotope carbon-11 including decay chains and daughter products.
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds. [1]
3 kwi 2019 · Carbon-11 is an accelerator-produced, positron-emitting radionuclide. Its physical half-life of 20.4 min is sufficiently long to allow for multistep syntheses while short enough to enable multiple PET scans of the same individual on the same day.
The half-life of uranium-238 is 4.5 billion years. It is one of the three natural occurring uranium isotopes, along with uranium-235 (700 million years), and uranium-234 (246,000 years). Use the half-life calculator to analyze radioactive decay.
Carbon-11. The carbon isotope C-11 is used as a radioisotope in positron emission tomography: [11 C]DASB and others. Carbon-14. C-14 - also known as radiocarbon - is the radioactive carbon isotope contained in small traces (1:1 trillion) in natural carbon.
