A chemical element (atomic number 35) that is a reddish-brown liquid at room temperature with a strong, unpleasant smell; one of the halogens.
From French brome, derived from Greek bromos (stench), because the element produces a foul-smelling vapor. Discovered by Antoine Jérôme Balard in 1826.
Bromine is the only element that's liquid at room temperature (besides mercury)—and the ancient Greeks named it 'stink' because of its awful smell, making it one of chemistry's most descriptively named elements!
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