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Anthropogenic and natural sources of bromine. The major sources include sea spray, salt lakes, marshes, volcanos, anthropogenic sources. Sinks include exchange of brominated compounds with the stratospheric and troposphere.Bromine's chemistry is linked to other halogens such as chlorine and iodine amplify atmospheric cycling that contributes to troposphere and stratosphere ozone layer ...
Braun had been making videos, mainly tutorials, for fun since his teenage years, creating a YouTube channel on March 10, 2014. His first video was uploaded on March 24, 2014, and many of his early videos were recordings of his projects as a laboratory technician or at his parents' garage, with them later being filmed at his industrial-grade laboratory. [3]
Liquid bromine is infrared-transparent. [36] Like solid chlorine and iodine, solid bromine crystallises in the orthorhombic crystal system, in a layered arrangement of Br 2 molecules. The Br–Br distance is 227 pm (close to the gaseous Br–Br distance of 228 pm) and the Br···Br distance between molecules is 331 pm within a layer and 399 pm ...
A bromide ion is the negatively charged form (Br −) of the element bromine, a member of the halogens group on the periodic table.Most bromides are colorless. Bromides have many practical roles, being found in anticonvulsants, flame-retardant materials, and cell stains. [3]
At room temperature, hydrogen bromide is a colourless gas, like all the hydrogen halides apart from hydrogen fluoride, since hydrogen cannot form strong hydrogen bonds to the large and only mildly electronegative bromine atom; however, weak hydrogen bonding is present in solid crystalline hydrogen bromide at low temperatures, similar to the ...
As sea water evaporates, a succession of minerals precipitate, concentrating the bromine. Bromide is so soluble that it does not form saline minerals. After halite (rock salt) precipitates, the remaining brine, called bittern, contains about 2,700 ppm bromine. Bromine continues to concentrate as magnesium and potassium minerals precipitate.
Starting in 2017, he was the host and participating researcher of the Science Channel documentary series Secrets of the Underground, whose goal was to examine long-held legendary mysteries that lie beneath the surfaces of streets, buildings, earth, salt and fresh water, etc. [3] [4] Nelson also cohosted the popular hit Animal Planet show, Life ...
[21] [22] Alternatively, if condensed astatine forms a metallic phase, as has been predicted, it may have a monatomic face-centered cubic structure; in this structure, it may well be a superconductor, like the similar high-pressure phase of iodine. [4] Metallic astatine is expected to have a density of 8.91–8.95 g/cm 3. [1]