Isotopes of chlorine

Chlorine has two stable isotopes, which are: 1. **Chlorine-35 (¹⁷Cl)**: This isotope has 17 neutrons and is the more abundant of the two, making up about 76% of naturally occurring chlorine. 2. **Chlorine-37 (¹⁹Cl)**: This isotope has 20 neutrons and accounts for about 24% of natural chlorine.

Chlorine-37 (\(^{37}\text{Cl}\)) is an isotope of chlorine, which is a chemical element with the symbol Cl and atomic number 17. It has a nuclear mass number of 37, meaning it contains 17 protons (which is characteristic of all chlorine atoms) and 20 neutrons (since 37 - 17 = 20).