carbon 11


carbon

 (C) [kahr´bon] a chemical element, atomic number 6, atomic weight 12.011. (See Appendix 6.)carbon 11 a radioactive isotope of carbon, atomic mass 11, having a half-life of 20.39 minutes; used as a tracer in tomography" >positron emission tomography.carbon 14 a radioactive isotope of carbon, atomic mass 14, having a half-life of 5730 years; used as a tracer in cancer and metabolic research.

car·bon 11 (11C),

(kar'bŏn), A cyclotron-produced, positron-emitting radioisotope of carbon with a half-life of 20.3 minutes; used in positron emission tomography (PET).