What Is the Difference Between Chlorine-35 and Chlorine-37?

By Staff WriterLast Updated Apr 4, 2020 9:15:34 AM ET

The difference between chlorine-35 and chlorine-37 is that chlorine-35 has 18 neurons, while chlorine-37 has 19 neurons. Chlorine is a chemical element with atomic number 17 and an atomic weight of 35.4527 grams per mole. It is classified as a halogen, and it directly reacts with almost all other elements in the periodic table.


Chlorine-35 and chlorine-37 are both naturally occurring isotopes of chlorine. The numbers after chlorine represent the mass numbers of the two isotopes. The mass number is the sum of the number of protons and neutrons in the nucleus of an atom.

In nature, chlorine is found mainly in sodium chloride, a compound or "combined state"; few elements are found naturally in their pure form or "free state." Industrial uses include the manufacture of paper products, medicines, dyes, textiles, petroleum products, solvents and paints. Chlorine is also used to disinfect water for drinking, and in some cases, it is used to disinfect swimming pools.

In organic chemistry, chlorine plays a major role in many reactions, including three of the most common. The first of the three reactions involves chlorine and an alkane to form a chloroalkane. In the second reaction, it reacts with an alkene. The third common reaction involves chlorine and a benzene to form chlorobenzene.