Chlorine-37

Chlorine-37
General
Symbol37Cl
Nameschlorine-37
Protons (Z)17
Neutrons (N)20
Nuclide data
Natural abundance24.22%
Isotope mass36.965903 Da
Isotopes of chlorine
Complete table of nuclides

Chlorine-37 (37
Cl
), is one of the stable isotopes of chlorine, the other being chlorine-35 (35
Cl
). Its nucleus contains 17 protons and 20 neutrons for a total of 37 nucleons. Chlorine-37 accounts for 24.22% of natural chlorine, with chlorine-35 the remaining 75.78%, giving chlorine in bulk an apparent atomic weight of 35.45 g/mol.

Remarkably, solar neutrinos were discovered by an experiment (Homestake Experiment) using a radiochemical method based on chlorine-37 transmutation.