Krypton
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Krypton is a chemical element; it has symbol Kr and atomic number 36. It is a colorless, odorless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fl
A krypton-filled discharge tube glowing white
Sir William Ramsay, the discoverer of krypton
Kr(H2)4 and H2 solids formed in a diamond anvil cell
Krypton gas discharge tube
Bromine
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Bromine is a chemical element; it has symbol Br and atomic number 35. It is a volatile red-brown liquid at room temperature that evaporates readily to form a similarly coloured vapour. Its properties
Krypton
…krypton is chemically highly unreactive. The rather restricted chemistry of krypton in the +2 oxidation state parallels that of the neighboring element bromine in the +1 oxidation state; due to the scandide contraction it is difficult to oxidize the 4p elements to their group oxidation states. Until the 1960s…
Liquid and gas bromine inside transparent cube
Antoine Balard, one of the discoverers of bromine
View of salt evaporation pans on the Dead Sea, where Jordan (right) and Israel (left) produce salt and bromine
Baltimore's Emerson Bromo-Seltzer Tower, originally part of the headquarters of Emerson Drug Company, which made Bromo-Seltzer