| 释义 |
potassium-42
potassium-42[pə′tas·ē·əm ¦fȯr·dē′tü] (nuclear physics) Radioactive isotope with mass number of 42; half-life is 12.4 hours, with β- and γ-radiation; radiotoxic; used as radiotracer in medicine. potassium-42
potassium-42n. An artificially produced beta-emitting isotope of potassium having a half-life of 12.36 hours; it is used as a radioactive tracer in studies of potassium distribution in bodily fluids. |