Bromine, a liquid at room temperature, has a boiling point of 58°c and a melting point of -7.2°c. bromine can be classi
ified
compound
impure substance.
mixture.
pure substance.
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Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons