Br keychain 20x40 mm.

<div>   </div> <div> <strong> Atomic number <span class = "Apple-tab-span" style = "white-space: pre;"> </span>       35 </strong> </div> <div> <strong> Atomic mass <span class = "Apple-tab-span" style = "white-space: pre;"> </span>       79,904 </strong> </div> <div> <strong> Density, kg / m? <span class = "Apple-tab-span" style = "white-space: pre;"> </span> & nbsp ;   3120 </strong> </div> <div> <strong> Temperature </strong></div> <div> <strong> melting, ° С         <span class = "Apple-tab-span" style = "white-space: pre;"> </span>-7,2</strong></div> <div>   </ div > <div> Bromine is a heavy, corrosive red-brown liquid with a strong unpleasant odor. Poisonous. Bromine was discovered in 1826 by the French chemist A. Zh. Balard in the study of brines from the Mediterranean salt fields; named from the Greek. bromos - stench. Bromine is widely distributed in nature and is found almost everywhere in a dispersed state. Almost all bromine compounds are water-soluble and therefore readily leach out of rocks. It is present as an impurity in hundreds of minerals. </div> <div>   </div>