Search results
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
Isotope data for carbon-11 in the Periodic Table. Click any isotope in diagram to see its data. Detailed decay information for the isotope carbon-11 including decay chains and daughter products.
This table lists the mass and percent natural abundance for the stable nuclides. The mass of the longest lived isotope is given for elements without a stable nuclide.
Atomic Mass Isotopic Composition Standard Atomic Weight Notes : 1 : H : 1 : 1.007 825 032 23(9) 0.999 885(70) [1.007 84, 1.008 11] m : D : 2 : 2.014 101 778 12(12) ... 135.907 214 484(11) 0.088 573(44) 55 : Cs : 133 : 132.905 451 9610(80) 1 132.905 451 96(6) 56 : Ba : 130 : 129.906 3207(28) 0.001 06(1) 137.327(7) 132 : 131.905 0611(11)
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.
Learning Objectives. By the end of this section, you will be able to: Define isotopes and identify examples of isotopes for several elements. Write and interpret symbols that depict the atomic number, mass number of isotopes. Write isotope names using common naming methods. What is an Isotope?
