Bromine

Bromine is a chemical element with the symbol Br and atomic number 35. It is a halogen, along with fluorine, chlorine, iodine, and astatine, and is located in group 17 of the periodic table. Bromine is the only non-metallic element that is liquid at room temperature and is a deep red-brown color.

Bromine is a highly reactive element and is often found as a diatomic molecule (Br2). It has a strong odor and is toxic, which makes it dangerous to handle in its pure form. Bromine is used in a variety of applications, including the production of flame retardants, water purification, and agricultural chemicals.

In nature, bromine is primarily found in seawater and evaporite deposits, where it can be extracted through processes such as solar evaporation or electrolysis. Bromine also has several isotopes, with the most stable being ^79Br.

Overall, bromine is an important element with many industrial and commercial applications, but must be handled with care due to its toxic and hazardous properties.