Out of the halogens, only one is liquid at room temperature - bromine. Bromine is a reddish-brown liquid that is highly reactive and corrosive. It has a boiling point of 58.8 degrees Celsius, which means it remains in liquid form at room temperature (around 20-25 degrees Celsius).

Bromine is commonly used in the production of flame retardants, pharmaceuticals, and agrochemicals. It is also used in the manufacturing of dyes, photographic chemicals, and oil drilling fluids. Due to its toxic and corrosive nature, bromine must be handled with care and proper safety precautions.

If you are interested in learning more about bromine and its properties, you can visit websites such as Chemistry World or PubChem for detailed information. These resources provide in-depth articles and data on the uses, risks, and applications of bromine in various industries.

Overall, bromine is the only halogen that exists in liquid form at room temperature. Its unique properties and reactivity make it a valuable element in many different fields. Remember to handle bromine with caution and always follow safety guidelines when working with this volatile substance.

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