Search results
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.
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.
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.
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) ... 127.903 5310(11) 0.019 102(8) 129 : 128.904 780 8611(60) 0.264 006(82) 130 : 129.903 509 349(10) 0.040 710(13) 131 : 130.905 084 06(24) 0.212 324(30) 132 :
1 sty 2018 · Traditional nomenclature denotes isotopic species as A Z E, in which Z is the element’s atomic number (e.g., number of protons) and A is the mass number (i.e., sum of protons and neutrons). For example, carbon atoms always contain six protons ( n = 6), but this atom can contain either six, seven, or eight neutrons ( m = 12, 13, or 14 ...
3 kwi 2019 · Gunnar Antoni. 4806 Accesses. 3 Citations. Abstract. 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.
