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Chlorine-36 (36 Cl) is an isotope of chlorine. Chlorine has two stable isotopes and one naturally occurring radioactive isotope, the cosmogenic isotope 36 Cl. Its half-life is 301,300 ± 1,500 years. [1] 36 Cl decays primarily (98%) by beta-minus decay to 36 Ar, and the balance to 36 S. [1]
36 Cl decays to either 36 S (1.9%) or to 36 Ar (98.1%), with a combined half-life of 308,000 years. The half-life of this hydrophilic nonreactive isotope makes it suitable for geologic dating in the range of 60,000 to 1 million years. Additionally, large amounts of 36 Cl were produced by neutron irradiation of seawater during atmospheric ...
chlorine-36: 301 9.5 selenium-79: 327 10.3 curium-248: 348 11.0 ... Radioactive isotope table "lists ALL radioactive nuclei with a half-life greater than 1000 ...
Sodium-22 and chlorine-36 are commonly used to study ion transporters. However, sodium-22 is hard to screen off and chlorine-36, with a half-life of 300,000 years, has low activity. However, sodium-22 is hard to screen off and chlorine-36, with a half-life of 300,000 years, has low activity.
The primary decay mode of isotopes lighter than 35 Cl is electron capture to isotopes of sulfur; that of isotopes heavier than 37 Cl is beta decay to isotopes of argon; and 36 Cl may decay by either mode to stable 36 S or 36 Ar. [42] 36 Cl occurs in trace quantities in nature as a cosmogenic nuclide in a ratio of about (7–10) × 10 −13 to 1 ...
Chlorine-36 is the radioactive isotope produced in many nuclear facilities as byproduct waste. [3] Its half-life of 3.01 × 10 5 years , mobility in the pedosphere , and ability to be taken up by organisms has made it an isotope of high concern among researchers. [ 3 ]
Large amounts of otherwise rare 36 Cl (half-life ~300ky) were produced by irradiation of seawater during atmospheric detonations of nuclear weapons between 1952 and 1958. The residence time of 36 Cl in the atmosphere is about 1 week.
This is the longest half-life directly measured for any unstable isotope; [4] only the half-life of tellurium-128 is longer. [ citation needed ] Of the chemical elements, only 1 element ( tin ) has 10 such stable isotopes, 5 have 7 stable isotopes, 7 have 6 stable isotopes, 11 have 5 stable isotopes, 9 have 4 stable isotopes, 5 have 3 stable ...
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