Bromine is a halogen, one of the elements in the same column of the periodic table of elements as fluorine. Like fluorine, one bromine atom can form a diatomic covalent molecule with another bromine atom. Which of the following images represents a stable molecule of bromine, Br2?

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering